The smooth cubic surfaces with 15 lines

Fatma Karaoğlu

Tekirdağ Namık Kemal University

**Abstract:** It is well-known that a smooth cubic surface has 27 lines over an algebraically closed field. If the field is not closed, however, fewer lines are possible. The next possible case is that of smooth cubic surfaces with 15 lines. This work is a contribution to the problem of classifying smooth cubic surfaces with 15 lines over fields of positive characteristic. We present an algorithm to classify such surfaces over small finite fields. Our classification algorithm is based on a new normal form of the equation of a cubic surface with 15 lines and at most 10 Eckardt points. The case of cubic surfaces with more than 10 Eckardt points is dealt with separately. Classification results for fields of order at most 13 are presented and a verification using an enumerative formula of Das is performed. Our work is based on a generalization of the old result due to Cayley and Salmon that there are 27 lines if the field is algebraically closed. Along the way, we show that the line-intersection graph of smooth cubic surfaces with 15 lines is unique.

Modular curves over number fields of small degree

Filip Najman

University of Zagreb

**Abstract:** Our understanding of modular curves over number fields has dramatically improved in recent years. I will give a survey of these results, as well as remaining open problems, and discuss the relevance and applications of these results.

IMBM is a center of research in diverse aspects of mathematics and its applications. The center aims to create an environment which encourages interaction of researchers by providing adequate space, time and services. One of the aims is to promote interdisciplinary research based on mathematics.

Although independently administrated, particular collaborative ties exist with the Boğaziçi University where the center is located.

The center has no formal curriculum, degree programs. Nevertheless, it aims to contribute to the development of young scientists through graduate seminars and postdoctoral training. Also, one of its purposes is to raise the public awareness for mathematical research.

Resources come from endowment income, grants and collaboration agreements with public and private institutions and gifts from corporations and individuals. Funding for researchers is provided from a variety of sources such as the center itself, home institutions or grants from collaborating research centers and universities.

IMBM is governed administratively by two committees.

A brief history of our center's establishment years as presented by Betül Tanbay, one of the founders of the center and one of the first co-directors (served between 2006-2012) and published in EMS Newsletter September 2010 can be found in this link.

- Organizers: Alp Bassa, Özgür Kişisel
- Webpage

- Organizers: Alp Bassa, Türkü Özlem Çelik, Özgür Esentepe, Ali Özgür Kişisel
- Webpage

IMBM is administrated by a management committee with a representation from major funding bodies. The management committee oversees the administration of the Center. A scientific steering committee, composed of internationally qualified researchers, determines the scientific policy and the programs. An international scientific advisory board evaluates the scientific programs and other activities.

Name | Years | |
---|---|---|

Olcay Coşkun - Selda Küçükçifçi | 2019 - 2021 |

Name | Years | |
---|---|---|

Mete Soner - Betül Tanbay | 2006 - 2008 | |

Betül Tanbay - Ali Ülger | 2008 - 2010 | |

Rahmi Güven - Betül Tanbay | 2010 - 2012 | |

Ferit Öztürk - Mete Soner | 2012 - 2016 | |

Kazım Büyükboduk - Ferit Öztürk | 2016 - 2017 | |

Ferit Öztürk - Burak Özbağcı | 2017 - 2019 | |

Olcay Coşkun - Selda Küçükçiftçi | 2019 - 2021 |

Name | Institution | |
---|---|---|

Alp Bassa | Boğaziçi University | |

Kazım Büyükboduk | UC Dublin | |

Olcay Coşkun | Boğaziçi University | Codirector (2019-today) |

Tınaz Ekim | Boğaziçi University | |

Ayhan Günaydın | Boğaziçi University | |

Burak Gürel | Boğaziçi University | |

Varga Kalantarov | Koç University | |

Özgür Kişisel | Middle East Technical University | |

Selda Küçükçifçi | Koç University | Codirector (2019-today) |

Burak Özbağcı | Koç University | |

Ekin Özman | Boğaziçi University | |

Ferit Öztürk | Boğaziçi University | |

Devin Sezer | METU Institute of Applied Mathematics | |

Ergün Yalçın | Bilkent University |

Name | Institution | |
---|---|---|

Feza Sefa Arslan | Mimar Sinan University | 2012 - 2016 |

Alp Bassa | Boğaziçi University | 2012 - |

Kazım Büyükboduk | UC Dublin | 2016 - |

Olcay Coşkun | Boğaziçi University | 2019 - |

Alp Eden | Boğaziçi University | 2006 - 2012 |

Tınaz Ekim | Boğaziçi University | 2016 - |

Ayhan Günaydın | Boğaziçi University | 2016 - |

Burak Gürel | Boğaziçi University | 2016 - |

Varga Kalantarov | Koç University | 2016 - |

Özgür Kişisel | Middle East Technical University | 2016 - |

Selda Küçükçifçi | Koç University | 2019 - |

Burak Özbağcı | Koç University | 2016 - |

Ekin Özman | Boğaziçi University | 2016 - |

Ferit Öztürk | Boğaziçi University | 2012 - |

Devin Sezer | METU Institute of Applied Mathematics | 2016 - |

Mete Soner | Bilkent University | 2006 - 2012 |

Betül Tanbay | Boğaziçi University | 2006 - 2012 |

Ali Ülger | Koç University | 2006 - 2012 |

Sinan Ünver | Koç University | 2012 - 2016 |

Ergün Yalçın | Bilkent University | 2016 - |

Cem Yalçın Yıldırım | Boğaziçi University | 2006 - 2012 |

Atilla Yılmaz | Boğaziçi University | 2012 - 2016 |

Name | Institution | Years |
---|---|---|

Victor Kac | MIT | |

David Mumford | Brown University | |

Mete Soner | ETH | |

Gilles Pisier | Texas A&M University | |

Edriss Titi | Weizmann Institute and University of California Irvine | |

Cem Yalçın Yıldırım | Boğaziçi University |

Name | Institution | Years |
---|---|---|

Selman Akbulut | Michigan State University | 2006 - 2016 |

Victor Kac | MIT | 2006 - |

David Mumford | Brown University | 2006 - |

Mete Soner | ETH | 2016 - |

Gilles Pisier | Texas A&M University | 2006 - |

Edriss Titi | Weizmann Institute and University of California Irvine | 2006 - |

Cem Yalçın Yıldırım | Boğaziçi University | 2016 - |

Name | Institution (During establisment) | |
---|---|---|

Selman Akbulut | Michigan State University | as Counselor |

Attila Aşkar | Koç University | as Rector |

Rahmi Güven | Boğaziçi University | |

Ayşe Soysal | Boğaziçi University | as Dean and Rector |

Betül Tanbay | Boğaziçi University | as Chairwoman |

Sabih Tansal | Boğaziçi University | as Rector |

Tosun Terzioğlu | Sabancı University | as Rector |

Ali Ülger | Koç University |

Name | Institution (During establisment) | Years |
---|---|---|

Attila Aşkar | Koç University | 2006 - 2016 |

Alp Eden | Boğaziçi University | 2012-2016 |

Rahmi Güven | Boğaziçi University | 2006-2016 |

Mete Soner | ETH | 2006-2016 |

Betül Tanbay | Boğaziçi University | 2012-2016 |

Tosun Terzioğlu | Sabancı University | 2006-2012 |

Ali Ülger | Koç University | 2006-2016 |

Cem Yalçın Yıldırım | Boğaziçi University | 2012-2016 |

Name | Institution | Years |
---|---|---|

Berrenur Saylam | Boğaziçi University | 2018 - |

Name | Institution | Years |
---|---|---|

Pınar Adanalı | Boğaziçi University | 2016 - 2018 |

Berrenur Saylam | Boğaziçi University | 2018 - |

IMBM has been supported by the following universities/institute. We thank for the support we received.

**Boğaziçi University****TMD-MAD****Aydın Doğan Vakfı****Bahçeşehir University****Doğuş University****Feza Gürsey Institute****Galatasaray University****Işık University****Koç University****Mimar Sinan University****Sabancı University****Stanford University****Tübitak-İŞBAP 2008-2012 Doctoral Network****Tübitak****US National Committee for Mathematics**

September 3, 2020

September 24, 2019

October 10, 2018

September 01, 2014

November 09, 2012

April 13, 2012

April 4, 2012

December 17, 2010

October 12, 2006

October 12, 2006

October 12, 2006

October 19, 2006

October 19, 2006

October 19, 2006

October 19, 2006

October 19, 2006

October 19, 2006

May 28, 2004

Rahmi Güven, Betül Tanbay, Ali Ülger, Attila Aşkar, Tosun Terzioğlu, Ayşe Soysal,

Istanbul is a very large city. However it has an extensive public transportation network. The fare for transportation is reasonable. Getting from one place to the other may take long. Do not get intimidated. Be patient. Depending on the route you choose, you will either take a metro, a Metrobüs, a bus, a Dolmuş, a HAVABUS shuttle , a HAVAIST shuttle , a taxi or a sequence of these. Here are some general tips:

You cannot buy ticket on a vehicle. If you plan to use public transport many times, buy a prepaid ISTANBULKART from a vending machine in the metro stations or kiosks all around the city. While buying an IstanbulKart, you must pay a non-refundable 6 TL fee (for the actual card and the service), plus an amount of your choice to load onto the card. You get transfer discount automatically if you use an IstanbulKart. If you will not use public transport except coming from/going to airports, you might buy cards that have several rides in them. With those cards, you do not have transfer discount.

Cabs are usually trustworthy. Yet always make sure that the taxi driver turns the meter on.

The trip durations given below are on the average. There might be drastic traffic jams.

Istanbul Airport (IST) and Boğaziçi University South and North Campuses are on the European side of Istanbul.

Sabiha Gökçen International Airport (SAW) is on the Asian side of Istanbul.

IMBM, and Kennedy Lodge are in the South Campus.

IMBM is situated in Boğaziçi University South Campus. Follow the red path in Map.1 below to reach the Center from the main entrance of the South Campus.

Map.1

It is in the South Campus, marked with the orange circle in the Map.1 above. You may ask your way to the gate keepers of the Campus.

It is in the South Campus, marked with the blue circle in the Map.1 above. You may ask your way to the gate keepers of the Campus.

It is in the South Campus, marked with the white circle in the Map.1 above. You may ask your way to the gate keepers of the Campus.

This building is situated in the North campus. Once you reach the main gate of the South Campus, follow the orange route shown in the Map.2 below. You may ask your way to the gate keepers of the North Campus. Tell that you are going to Üçüncü Yurt (pronounce Ütchündjü Yurt, read all letters).

Map.2

FROM THE ISTANBUL AIRPORT TO SOUTH CAMPUS (IST) -- This airport is on the European side as well as Boğaziçi University. There are various ways to get to the campus.

1) HAVAIST + METRO: Go out of the arrival hall. In front of the building take the Havaist to Hacıosman or 4. Levent. It costs 18 Liras. From Hacıosman or 4. Levent, take the M2 metro line and change to line M6 at Levent Station. Get off at the last station which is Boğaziçi University.

http://www.istanbul-ulasim.com.tr/passenger-services/network-maps.aspx

http://nasilgiderim.iett.istanbul/

2) HAVAIST + TAXI: Go out of the arrival hall. In front of the building take the Havaist to 4.Levent. It costs 18 Liras. From there, take a yellow cab. Tell the driver that you want to go to "Boazitchi Üniversitesi Ghünei Kampüs" (read all the letters). It takes around 15 minutes to get to the campus and costs ~25 Liras.

3) TAXI (easy, but usually slower): Go out of the arrival hall. In front of the building take one of the (yellow) cabs. Tell the driver that you want to go to "Boazitchi Üniversitesi Ghünei Kampüs" (read all the letters). It takes around 45 minutes to get to the campus and costs ~140 Liras.

FROM SABIHA GÖKÇEN INTERNATIONAL AIRPORT (SAW) TO SOUTH CAMPUS -- This airport is on the Asian side while the university is on the European side.

1) BUS + TAXI: Go out of the arrival hall. In front of the building take the bus number E3. It reads Sabiha Gökçen Havalimanı - 4. Levent Metro. You must buy an IstanbulKart or a card with several rides in it. You will get off at the last stop. The trip takes more than an hour and even more depending on the traffic. On the way you will pass across Bosphorus. As soon as you get off from the bus, (EITHER) use the underground passage to get across the street. At the other side take a (yellow) cab. Tell the driver to take you to "Boazitchi Üniversitesi Ghünei Kampüs" (read all the letters). It takes around 15 minutes to get to the campus and costs around 25 Liras. (OR) keep walking in the same direction until the metor station Levent. Take the metro M6 towards Boğaziçi Üniversitesi. Get off at the last stop.

2) HAVATAŞ + TAXI: Go out of the arrival hall. In front of the building take the shuttle called HAVATAŞ to Taksim. It costs around 15 Liras. Get off at Kavacık. The trip takes nearly an hour and even more depending on the traffic. As soon as you get off, you will be on a very busy intercity road. Take one of the present (yellow) cabs. You will go in the same direction as the shuttle and eventually pass across Bosphorus. Tell the driver to take you to "Boazitchi Üniversitesi Ghünei Kampüs" (read all the letters). It takes around 15 minutes to get to the campus and costs around 20 Liras.

Mail Address

Istanbul Center for Mathematical Sciences

Bogazici University South Campus

Bebek

34342 Istanbul

Turkey

Phone: ++90-212-359-7477

++90-212-359-6602 (Dept. of Math. - in case the center is closed)

Fax: ++90-212-359-7478

E-mail: imbm [at] imbm.org.tr

Detailed Campus MapPropose an event

Istanbul Center for Mathematical Sciences welcomes applications to visit IMBM or to organize workshops/conferences/seminars. Please fill in the relevant form below.

To organize an event consisting of at least 2 seminars, please use the form for conferences and workshops.

We suggest all applications to be completed at least 5 weeks prior to the event date. Before filling the form, please check the calendar in the application form for available dates. To apply for accommodation, please fill in the relevant section of the application form.

For all other events (1 seminar event or research in pairs) please fill in the form research in pairs.

We suggest all applications to be completed at least 5 weeks prior to the event date. Before filling the form, please check the calendar in the application form for available dates. To apply for accommodation, please fill in the relevant section of the application form.

2021

- On December 3
^{th}2021: Fatma Karaoğlu from Tekirdağ Namık Kemal University will give a talk titled "The smooth cubic surfaces with 15 lines " - On November 29
^{th}2021: Filip Najman from University of Zagreb will give a talk titled "Modular curves over number fields of small degree " - On November 15
^{th}2021: (ONLINE) Atabey Kaygun from İstanbul Teknik Üniversitesi gave a talk titled "Birational equivalences and Kac-Moody algebras " - On November 10
^{th}2021: (ONLINE) Nizar Touzi from Ecole Polytechnique gave a talk titled "The propagation of chaos for the multiple optimal stopping problem " - On November 5
^{th}2021: Tülay Ayyıldız Akoğlu from Karadeniz Technical University gave a talk titled "Hermite Matrices and their signatures " - On October 22
^{th}2021: "Mathematics Days V" - On October 20
^{th}2021: Mikhail Alfimov from Higher School of Economics, Moscow gave a talk titled "On normal form of beta-function of 2D sigma-models " - On October 18
^{th}2021: (ONLINE) Deniz Yılmaz from Université de Picardie Jules Verne gave a talk titled "Diagonal*p*-permutation functors" - On October 13
^{th}2021: (ONLINE) Rahul Pandharipande from ETH Zurich gave a talk titled "Algebraic Curves, Hurwitz Covers and Meromorphic Differentials" - On October 11
^{th}2021: (ONLINE) Laurence John Barker from Bilkent University gave a talk titled "Semisimplicity of some deformations of the subgroup category and the biset category" - On September 30
^{th}2021: Özgür Kişisel from Middle East Technical University gave a talk titled "The Expected Depth of Random Real Algebraic Plane Curves " - On September 24
^{th}2021: Madalina Erascu from West University of Timisoara gave a talk titled "Using Real Quantifier Elimination for Synthesizing Optimal Numerical Algorithms " - On September 15
^{th}2021: (ONLINE) Jordan Ellenberg from University Wisconsin gave a talk titled "Upper Bounds for Rational Points" - On August 30-September 12
^{th}2021: "Matematik Araştırma Programı" - On August 27
^{th}2021: Türkü Özlüm Çelik from Simon Fraser University gave a talk titled "Numerical Reconstruction of Curves from Their Jacobians" - On August 25
^{th}2021: Anna Somoza from Université de Rennes 1 gave a talk titled "The higher-dimensional theta functions, and an interesting application" - On August 23
^{th}2021: Christophe Ritzenthaler from Université de Rennes 1 and Université Côte d'Azur gave a talk titled "Maximal Number of Rational Points on (Plane) Curves Over Finite Fields" - On August 23-27
^{th}2021: "Tools and Software for Algebraic Geometry" - On August 11
^{th}2021: Kemal Tezgin from Brookhaven National Laboratory gave a talk titled "The Distribution of Energy, Momentum, Angular Momentum and Mechanical Forces inside the Nucleon" - On June 11
^{th}2021: (ONLINE) Jennifer Balakrishnan from Boston University gave a talk titled "Quadratic Chabauty for Modular Curves" - On June 8, 9, 10
^{th}2021: "Operator Algebras 2021" - On May 31
^{th}2021: (ONLINE) Robert Boltje from University of California Santa Cruz gave a talk titled "The Broué invariant of a p-permutation equivalence" - On May 21
^{th}2021: (ONLINE) Alvaro Lozano-Robledo from University of Connecticut gave a talk titled "Towards a classification of adelic Galois representations attached to elliptic curves over Q" - On May 17
^{th}2021: (ONLINE) Ergün Yalçın from Bilkent University gave a talk titled "Higher limits over the fusion orbit category" - On May 3
^{th}2021: (ONLINE) Hatice Mutlu Akatürk from University of California Santa Cruz gave a talk titled "Monomial posets and their Lefschetz invariants" - On April 30
^{th}2021: (ONLINE) Ravi Ramakrishna from Cornell University gave a talk titled "Tame Galois extensions of number fields" - On April 21
^{th}2021: (ONLINE) Tim Tribone from Syracuse University gave a talk titled "Matrix factorizations with more than two factors" - On April 19
^{th}2021: (ONLINE) Peter Webb from University of Minnesota gave a talk titled "Transfer in the Cohomology of Categories Using Biset Functors" - On April 14
^{th}2021: (ONLINE) Sergio Estrada from University of Murcia gave a talk titled "The big singularity category of a non-affine scheme" - On April 9
^{th}2021: (ONLINE) Rachel Newton from Reading University gave a talk titled "Diophantine equations and when to quit trying to solve them" - On April 7
^{th}2021: (ONLINE) Olgür Çelikbaş from West Virginia University gave a talk titled "On torsion in tensor products of modules " - On April 5
^{th}2021: (ONLINE) İpek Tuvay from Mimar Sinan Güzel Sanatlar Üniversitesi gave a talk titled "Fusion Systems and Brauer Indecomposability of Scott Modules" - On March 31
^{th}2021: (ONLINE) Nursel Erey from Gebze Technical University gave a talk titled "Edge ideals and some numerical invariants of graded resolutions" - On March 24
^{th}2021: (ONLINE) Matthew Habermann from London School of Geometry and Number Theory gave a talk titled "Homological mirror symmetry for nodal stacky curves" - On March 22
^{th}2021: (ONLINE) Serge Bouc from Université de Picardie Jules Verne gave a talk titled "A Functorial Resolution of Units of Burnside Rings" - On March 17
^{th}2021: (ONLINE) Doğancan Karabaş from Northwestern University gave a talk titled "Microlocal sheaves, and the case of rational homology balls" - On March 15
^{th}2021: (ONLINE) Piotr Kowalski from Uniwersytet Wroclawski gave a talk titled "Model theory of group scheme actions on fields" - On March 13
^{th}2021: (ONLINE) Attila Aşkar & Sinan Sertöz gave a talk titled "Dünya Matematik Günü" - On March 10
^{th}2021: (ONLINE) Can Ozan Oguz from Galatasaray University gave a talk titled "Towards combinatorics of resolution of singularities" - On March 3
^{th}2021: (ONLINE) Emrah Sercan Yılmaz from Atılım University gave a talk titled "On the number of irreducible polynomials over finite fields with prescribed coefficients" - On February 24
^{th}2021: (ONLINE) Büşra Sert from TU Dresden gave a talk titled "Combinatorial Methods for Minkowski Tensors of Polytopes" - On February 17
^{th}2021: (ONLINE) Sinem Odabaşı from Universidad Austral de Chile gave a talk titled "On Induced Cotorsion Pairs in Functor Category" - On February 10
^{th}2021: (ONLINE) Özgür Esentepe from University of Connecticut gave a talk titled "Annihilation of Cohomology Over Curve Singularities" - On February 3
^{th}2021: (ONLINE) Oğuzhan Yürük from TU Berlin gave a talk titled "Understanding the Regions of Multistaionarity via Symbolic Nonnegativity Certificates" - On January 27
^{th}2021: (ONLINE) Emre Şen from University of Iowa gave a talk titled "Quivers in Algebraic Geometry: Various Examples" - On January 20
^{th}2021: (ONLINE) Kürşat Sözer from University of Lille gave a talk titled "Two-dimensional extended HQFTs with arbitrary targets" - On January 13
^{th}2021: (ONLINE) Levent Doğan from Technical University of Berlin gave a talk titled "Polynomial Time Algorithms for Torus Actions" - On January 6
^{th}2021: (ONLINE) Sümeyra Sakallı from University of Arkansas gave a talk titled "Symplectic 4-Manifolds on the Noether Line and between the Noether and Half Noether Lines"

- On December 16
^{th}2020: (ONLINE) Burçin Güneş from Sabancı University gave a talk titled "On Nilpotent Automorphism Groups of Function Fields" - On December 12
^{th}2020: (ONLINE) Piotr Kowalski from Wrocławski University gave a talk titled "Model Theory of Fields with Group Scheme Actions" - On December 9
^{th}2020: (ONLINE) İzzet Coşkun from University of Illinois at Chicago gave a talk titled "Brill-Noether Theorems for Moduli Spaces of Sheaves on Surfaces" - On December 2
^{th}2020: (ONLINE) Sema Güntürkün from Amherst College gave a talk titled "On the Eisenbud-Green-Harris conjecture" - On November 25
^{th}2020: (ONLINE) Kadri İlker Berktav from Middle East Technical University gave a talk titled "Higher Structures in Einstein Gravity" - On November 18
^{th}2020: (ONLINE) Ayşegül Öztürkalan from Abdullah Gül University gave a talk titled "Loops in Moduli Spaces of Real Plane Projective Curves" - On November 11
^{th}2020: (ONLINE) Bahar Acu from Northwestern University gave a talk titled "Understanding Symplectic Fillings of Contact Manifolds via Algebraic Varieties" - On November 4
^{th}2020: (ONLINE) Oğuz Şavk from Boğaziçi University gave a talk titled "Brieskorn Spheres, Homology Cobordism and Homology Balls" - On October 28
^{th}2020: (ONLINE) Özhan Genç from Jagiellonian University gave a talk titled "Ulrich Trichotomy on del Pezzo Surfaces" - On October 21
^{th}2020: (ONLINE) İrem Portakal from Otto-von-Guericke-University gave a talk titled "Rigid toric matrix Schubert varieties" - On October 16
^{th}2020: (ONLINE) "Mathematics Day 4" - On October 16
^{th}2020: Mehmet Dede from Boğaziçi University gave a talk titled "Knot theory and statistical mechanics" - On October 14
^{th}2020: (ONLINE) Enis Kaya from University of Groningen gave a talk titled "Explicit Vologodsky Integration for Hyperelliptic Curves" - On October 7
^{th}2020: (ONLINE)Selvi Kara from University of South Alabama gave a talk titled "Monomial Ideals of Graphs and Their Syzygies" - On September 30
^{th}2020: (ONLINE)Kadri İlker Berktav from Middle East Technical University gave a talk titled "Higher Structures in Physics" - On September 25
^{th}2020: Oğuz Öner from Boğaziçi University gave a talk titled "Third order equations of motions and the Ostragadsky instability" - On September 23
^{th}2020: (ONLINE) Umut Varolgüneş from Stanford University gave a talk titled "Homological mirror symmetry for chain type invertible polynomials" - On
September 18
^{th}2020: Dilara Kosva from Boğaziçi University gave a talk titled "An Algebro-Geometric View on Mirror Symmetry" - On
September 16
^{th}2020: (ONLINE) Hülya Argüz from University of Versailles Saint-Quentin-En-Yvelines gave a talk titled "An Algebro-Geometric View on Mirror Symmetry" - On September 11, 12, 13 2020: (CANCELLED) Geometry and Symetry School
- On
September 11
^{th}2020: Mehmet Batu Bayındırlı from Boğaziçi University gave a talk titled "Kloosterman Sums for SL3 Long Word Element" - On
September 9
^{th}2020: (ONLINE) Mehmet Kıral from RIKEN AIP gave a talk titled "Kloosterman Sums for SL3 Long Word Element" - On
September 2
^{th}2020: (ONLINE) Özge Ülkem from Heidelberg University gave a talk titled "Uniformization of the moduli space of generalized D-elliptic sheaves" - On August 26
^{th}2020: (ONLINE) Yusuf Barış Kartal from Princeton University gave a talk titled "p-adic analytic actions on Fukaya categories and iterates of symplectomorphisms" - On August 20
^{th}2020: Rob Klabbers from Nordita, Stockholm gave lectures on "Spin chains and the Bethe Ansatz " - On August 19
^{th}2020: (ONLINE) Emre Sertöz from Leibniz University Hannover gave a talk titled "Separating Periods of Quartic Surfaces" - On August 19
^{th}2020: Mustafa Kalafat from Nesin Mathematics Village gave a talk titled "Algebra of G_2 Manifolds " - On August 12
^{th}2020: Emine Yildirim from Queen's University gave lectures on "Cluster Categories " - On August 5, 6, 7, 8
^{th}2020: (CANCELLED) Representations of finite groups: Explicit, Canonical and Functorial Conference - On July 6 - 19
^{th}2020: (ONLINE) The 5th GTSS - Geometry-Topology Summer School - On June 25
^{th}2020: (CANCELLED) Gabriel-Eduard Vilcu from Petroleum-Gas University of Ploiesti gave a talk titled "Semi-Riemannian Foliations and Submersions in Quaternion-Like Geometries " - On June 24
^{th}2020: (CANCELLED) Weimin Chen from University of Massachusetts Amherst gave a talk titled "Symplectic Calabi-Yau 4-manifolds via orbifold covering " - On June 17-19
^{th}2020: (CANCELLED) Branes, Black Holes and Symmetries Workshop - On May 28
^{th}2020: (CANCELLED) Model Theory Workshop - On April 3
^{th}2020: (CANCELLED) Makoto Kimura from Ibaraki University gave a talk titled "Ricci soliton and hypersurface theory" - On March 20
^{th}2020: (CANCELLED) Ali Seraj from Universite Libre de Bruxelles gave a talk titled "The Poincare and BMS flux-balance laws with application to binary systems" - On March 14
^{th}2020: (CANCELLED) Dünya Matematik Günü - On March 13
^{th}2020: (CANCELLED) Dennis Hansen from ETH Zurich gave a talk titled "Non-Relativistic Gravity and its Coupling to Matter" - On March 9
^{th}2020: Georges Skandalis from Paris VII, Institut de Mathematiques de Jussieu gave a talk titled "Traces and Determinants on noncommutative algebras and countable groups" - On March 7
^{th}2020: Women and Mathematics - On January 8
^{th}2020: Hamid Rahkooy from CNRS, Inria and the Universite de Lorraine, Nancy gave a talk titled "On Detecting Toricity of Varieties"

- On December 20
^{th}2019: George Jorjadze from Free University of Tbilisi gave a talk titled "The S-matrix of Liouville theory" - On December 17
^{th}2019: Şafak Özden from Tulane University gave a talk titled "Introduction to Farahat-Higman rings" - On December 16, 18, 20
^{th}2019: Lecture Series on Elliptic Curves and Modular Forms - On December 6, 7
^{th}2019: Commemoration event and workshop dedicated to the memory of Prof. Rahmi Güven - On November 25
^{th}2019: Michael Berry from University of Bristol gave a talk titled "Superoscillations in waves: old, new, common, uncommon" - On November 23
^{th}2019: Ankara-Istanbul Algebraic Geometry & Number Theory Meetings - On November 22
^{th}2019: MTPA Day - On November 19
^{th}2019: Agnes Szanto from North Carolina State University gave a talk titled "Certified Hermite Matrices from Approximate Roots - Univariate and Multivariate Case" - On November 19
^{th}2019: Türkü Özlüm Çelik from Max Planck Institute for Mathematics in the Sciences gave a talk titled "Algebraic Computations of Theta Constants" - On November 7, 8, 9
^{th}2019: International Workshop on Geometry of Submanifolds - On November 3
^{rd}2019: Keti Tenenblat from Universidade de Brasília gave a talk titled "On Backlund and Ribaucour transformations for surfaces and the sine-Gordon equation" - On November 1
^{st}& 2^{nd}2019: Workshop on Graph Theory and Its Applications-IX - On October 18
^{th}2019: Marion Ioan Munteanu from University Alexandru Ioan Cuza of Iasi gave a talk titled "Magnetic geodesics and magnetic mapss" - On October 12
^{th}2019: Bosphorus Real Geometry Conference - On September 28
^{th}2019: Edriss Titi from Texax A&M University gave a talk titled "Global Well-posedness of an Inviscid Three-dimensional Pseudo-Hasegawa-Mima-Charney-Obukhov Model" - On September 26
^{th}2019: Emil Akhmedov from Moscow Institute of Physics and Technology gave a talk titled "Basics of de Sitter and anti-de Sitter physics" - On September 24
^{th}2019: Geordie Williamson from University of Sydney gave a talk titled "Representation theory and geometry" - On September 20
^{th}2019: IMBM Mathematics Day III - On September 18
^{th}2019: Afshin Behmaram from University of Tabriz gave a talk titled "Linear algebra methods for counting the number of perfect matchings in graphs" - On September 16&17
^{th}2019: Mini-course on the use of category theory in topological field theory - On September 13, 14, 15 2019: Geometry and Symetry School
- On September 12
^{th}2019: Bernd Sturmfels from U.C. Berkeley gave a talk titled "Sixty-four Curves of Degree Six" - On September 11
^{th}2019: Afshin Behmaram from University of Tabriz gave a talk titled "Dominating induced matching in graphs"

- On December 20-21
^{th}2018: "Workshop on Topology and Geometry in Low Degrees" - On December 14
^{th}2018: "Mathematical and Theoretical Physics Afternoon" - On December 6-7
^{th}2018: "Around Deformation quantization" - On December 5
^{th}2018: "String Memory Effect" - On November 27
^{th}2018: "Combinatorics and Geometrys" - On November 21
^{th}2018: "Congruences for sporadic sequences and modular forms for non-congruence subgroups" - On November 20
^{th}2018: "Surfaces in D4 with the same boundary and fundamental group" - On November 9-10
^{th}2018: "Workshop On Graph Theory and Its Applications - VIII" - On October 27-28
^{th}2018: "Discrete Mathematics Days" - On October 20
^{th}2018: "Ankara- Istanbul Algebraic Geometry & Number Theory Meetings" - On October 17
^{th}2018: "Can Chern-Simons or Rarita-Schwinger be a Volkov-Akulov Goldstone?" - On October 12
^{th}2018: "Mathematical and Theoretical Physics Afternoons" - On September 26
^{th}2018: "Gravity and the spin-2 planar Schroedinger equation" - On September 21
^{th}2018: "IMBM Mathematics Days II" - On September 5
^{th}2018: "Matrix Quantum Mechanics and Cosmological singularities" - On August 28-30 & September 4-6
^{th}2018: "Symmetries in gauge theory & gravity" - On August 10
^{th}2018: "Complex algebraic surfaces close to the BMY line" - On July 27-28-29-30
^{th}2018: "Period Integrals Associated to Algebric Varieties Workshop" - On July 16
^{th}2018: "Electroweak standard model with very special relativity" - On July 9
^{th}2018: "Collisions in AdS, quark-gluon plasma and energy conditions" - On June 19
^{th}2018: "New Developments in Hypergraph Ramsey Theory" - On June 11
^{th}2018: "Algorithms for Zero Dimensional Ideals" - On June 8
^{th}2018: "Applications and Extensions of Real Stability Preservers" - On June 4-8
^{th}2018: "Summer School on Effective Geometry and Arithmetic of Curves" - On June 1
^{th}2018: "Hyperbolic Relaxation of the 2D Navier-Stokes Equations in a Bounded Domain" - On June 1
^{th}2018: "Strichartz estimates and attractors for measure driven quintic wave equation" - On May 25
^{th}2018: "GVF structures on global fields" - On May 21
^{th}2018: "Aspects of bulk reconstruction for subregions" - On May 18
^{th}2018: "Hypercyclic Sets" - On May 12
^{th}2018: "Ankara- Istanbul Algebraic Geometry & Number Theory Meetings" - On May 11
^{th}2018: "Lectures On KAM Theory" - On May 4
^{th}2018: "A new notion of tameness" - On May 3
^{th}2018: "Non-geometry in string theory" - On April 27
^{th}2018: "Banach lattices as first-order structures in unbounded continuous logic" - On April 24
^{th}2018: "Born-Infeld Gravity Theories" - On April 20
^{th}2018: "Further developments of the pluripotential theory" - On April 19
^{th}2018: "Which integers are sums of seven cubes?" - On April 14
^{th}2018: "The Ankara-Istanbul Algebraic Geometry & Number Theory Meetings" - On April 13
^{th}2018: "Global Fields in Continuous Logic, Introduction" - On March 27
^{th}2018: "Mathematical and Theoretical Physics Afternoons" - On March 23
^{th}2018: "Hypercyclic algebras" - On March 10
^{th}2018: "Women and Mathematics: Differential Geometry" - On February 27
^{th}2018: "Mathematical and Theoretical Physics Afternoons" - On February 26
^{th}2018: "Berry Phases of Boundary Gravitons" - On February 16
^{th}2018: "Determining the Global Dynamics of the Two-dimensional Navier-Stokes Equations by a Scalar ODE" - On February 10
^{th}2018: "Determining the Global Dynamics of the Two-dimensional Navier-Stokes Equations by a Scalar ODE" - On January 23
^{th}2018: "Internal Supersymmetry and its Goldstini" - On January 21-28
^{th}2018: "Recent Advances in Quantum Gravity" - On January 23
^{th}2018: "Internal Supersymmetry and its Goldstini"

- On December 15
^{th}2017: "Two lectures on probabilistic methods for data science" - On December 12
^{th}2017: "Mathematical and Theoretical Physics Afternoons" - On December 8
^{th}2017: "Probability Meetings" - On November 17
^{th}2017: "New solutions in D=7 supergravity and holographic conformal defects" - On November 11
^{th}2017: "The Ankara-Istanbul Algebraic Geometry & Number Theory Meetings" - On November 10
^{th}2017: "An obstruction to planarity of contact structures" - On October 31
^{th}2017: "Arithmetic properties of elliptic division polynomials and divisibility sequences" - On September 29
^{th}2017: "Newton-Cartan Gravity and Torsion" - On September 14-15
^{th}2017: "IMBM Mathematics Days" - On July 4
^{th}2017: "Equivariant Moore spaces and the Dade group" - On June 22
^{th}2017: "Wandering around gauge theory vacua" - On June 14
^{th}2017: "Alternate Mirror Families and Hypergeometric Motives" - On June 12
^{th}2017: "Calibrated Entanglement Entropy" - On June 10
^{th}2017: "Alternate Mirror Families and Hypergeometric Motives" - On May 24-May 26
^{th}2017: "Group Actions on four-manifolds" - On May 19-20
^{th}2017: "IMBM Probability Days" - On May 12
^{th}2017: "IMBM Model Theory Day" - On May 6
^{th}2017: "The Ankara-Istanbul Algebraic Geometry & Number Theory Meetings" - On April 24-May 5
^{th}2017: "Lectures on elliptic hypergeometric functions" - On April 18
^{th}2017: "Fractional Parameters In Graph Theory" - On April 17
^{th}2017: "Carroll and Galilei (higher spin) gravity" - On April 15
^{th}2017: "Fractional Parameters In Graph Theory" - On April 7
^{th}2017: "IMBM Model Theory Day - On March 11
^{th}2017: "Women and Mathematics: Algebras" - On March 4
^{th}2017: "The Ankara-Istanbul Algebraic Geometry & Number Theory Meetings" - On March 3
^{th}2017: "Central Kernel and Central Autocommutator Subgroups of a Group" - On January 13
^{th}2017: "IMBM Differential Equations Meetings" - On January 13
^{th}2017: "DAVEY-STEWARTSON DENKLEMLERİNİN ALFA DÜZGÜNLEŞTİRMESİ ÜZERİNE"

- On December 15
^{th}2016: "Progress in integrable lattice models inspired by supersymmetric gauge theories" - On December 9
^{th}2016: "IMBM Differential Equations Meetings" - On November 21-25-28
^{th}2016: "Minimal Surfaces" - On November 17-23
^{th}2016: "Workshop on Graph Theory and its Applications" - On November 14
^{th}2016: "The Ankara-Istanbul Algebraic Geometry & Number Theory Meetings" - On August 16
^{th}2016: "Information and firewall paradoxes" - On July 11-13
^{th}2016: "Workshop on Nonlinear dispersive PDE; long time dynamics, BVPs, integrability (TMD-MAD)" - On June 24-25
^{th}2016: "Workshop on Dynamics of Linear Operators" - On June 13-15
^{th}2016: "Recent Developments in Symmetries and (Super)gravity Theories (TMD-MAD)" - On June 7
^{th}2016: "Resurgence and some of its applications in physics" - On June 3-6-8
^{th}2016: "Mini-workshop on Interactions of commutative algebra and graph theory" - On May 9-28
^{th}2016: "Workshop on Lie groups, algebras, and their representations (a graduate school) (TMD-MAD)" - On May 18
^{th}2016: "Examples on Strongly Fillable but not Stein Fillable Contact 3-manifolds" - On May 16
^{th}2016: "Model Theory Meetings" - On April 30
^{th}2016: "Ankara-Istanbul Algebraic Geometry & Number Theory Meetings" - On April 18
^{th}2016: "Model Theory Meetings" - On April 11-14
^{th}2016: "Workshop on Banach Algebras in Honor of Ali Ülger (TMD-MAD)" - On March 31
^{th}2016: "N=2 String Theory and Gauge Theories: a Love Story" - On March 29
^{th}2016: "Mathematics, an important tool for innovation" - On March 24-26
^{th}2016: "Models and Groups, Istanbul 6 - Workshop on Model Theory and Groups" - On March 19
^{th}2016: "Ankara-Istanbul Algebraic Geometry & Number Theory Meetings" - On March 18
^{th}2016: "Functoriality, trace formula, and related problems" - On March 16
^{th}2016: "Artin’s primitive root conjecture" - On March 14-16-18
^{th}2016: "Mini-workshop on Iwasawa theory of Rankin-Selberg convolutions and Beilinson-Flach elements" - On March 9
^{th}2016: "The order bound for algebraic geometry codes" - On March 7-11-14-18
^{th}2016: "Lecture Series-Various arithmetic aspects on hypergeometric functions" - On March 4
^{th}2016: "Model Theory Meetings" - On February 27
^{th}2016: "Ankara-Istanbul Algebraic Geometry & Number Theory Meetings"

- On December 17
^{th}2015: "Galileons and Black holes" - On December 12
^{th}2015: "IMBM Geometry/Topology Meetings" - On December 3
^{th}2015: "An Overview of Langlands Program" - On December 3
^{th}2015: "Supergravity and the Cosmological Constant" - On December 2
^{th}2015: "Love and Mathematics in the Age of AI" - On November 27-28
^{th}2015: "Workshop on Graph Theory and its Applicatons V" - On November 17
^{th}2015: "Singularity-Formation for M-branes" - On November 16-18
^{th}2015: "Mini-course: The phase transition of the Erdös-Rényi random graph" - On November 14
^{th}2015: "Ankara-İstanbul Algebraic Geometry and Number Theory Meetings" - On November 10
^{th}2015: "Noncommutative Surfaces" - On October 8-10
^{th}2015: "Workshop on Model Theory and Groups V" - On September 15-17
^{th}2015: "Workshop on Iwasawa theory and (p-adic) Beilinson conjectures" - On August 25
^{th}2015: "IMBM Discrete Mathematics Seminar" - On August 23
^{th}2015: "Witt vectors and positivity" - On August 19-21
^{th}2015: "Workshop on Equivariant Homotopy and ∞-categories" - On August 18
^{th}2015: "3-Vertex Factors in Graphs" - On August 13
^{th}2015: "c-Sum Flows in Graphs" - On July 13
^{th}2015: "Generalized theta functions and conformal blocks over singular curves" - On June 3
^{th}2015: "Geometry - Topology Workshop" - On May 27
^{th}2015: "Comparison of Hypercyclicity and Disjoint Hypercyclicity" - On May 18-22
^{th}2015: "Topics in Geometry and Topology Meeting" - On May 16
^{th}2015: "The problem of resolution of singularities in arbitrary characteristic and generalized Puiseux series" - On May 15-16
^{th}2015: "Workshop On The Kadison Singer Problem" - On May 6
^{th}2015: "Generalized north-south dynamics on the space of geodesic currents" - On May 4-6-7
^{th}2015: "Lectures on Abelian Varieties with Complex Multiplication" - On April 26
^{th}2015: "Ankara-Istanbul Commutative Algebra Workshop 1" - On April 24
^{th}2015: "Arf Lecture" - On April 24
^{th}2015: "Univalent foundations of mathematics" - On April 10
^{th}2015: "Random networks and epidemics" - On April 6
^{th}2015: "Mini workshop on Population Dynamics" - On March 26-28
^{th}2015: "Workshop on Model Theory and Groups IV" - On March 23
^{th}2015: "Perturbative QFT Meets Number Theory" - On March 20-21
^{th}2015: "EMS Ethics Committee Meeting" - On March 14-16-18
^{th}2015: "Mini-workshop on Iwasawa theory of Rankin-Selberg convolutions and Beilinson-Flach elements" - On March 7-8
^{th}2015: "Mini Course (Toric ideals arising from graphs)" - On February 6
^{th}2015: "TMD Meeting"

- On November 22
^{th}2014: "The Second Ankara- ̇Istanbul Algebraic Geometry & Number Theory Meetings" - On November 13
^{th}2014: "Associated forms in classical invariant theory" - On November 4-6-11-13-18
^{th}2014: "Lecture series on Integrable Systems" - On October 23-24
^{th}2014: "Workshop on Graph Theory and its Applications IV" - On October 16-18
^{th}2014: "Workshop on Model Theory and Groups III" - On October 13
^{th}2014: "Geometric class field theory for varieties over finite fields" - On October 13
^{th}2014: "Duality for logarithmic de Rham-Witt sheaves and wildly ramified class field theory of varieties over finite fields" - On October 8
^{th}2014: "Selberg integrals and Geometry" - On October 2
^{th}2014: "The noise sensitivity of BosonSampling" - On September 1
^{th}2014: "Meeting with ERC president Bourguignon" - On June 24
^{th}2014: "IMBM Contact and Symplectic Dynamics Day" - On June 18-20
^{th}2014: "Recent Developments in Supergravity Theories" - On June 12-13
^{th}2014: "1st Ankara-Istanbul Workshop on Stochastic Processes" - On May 29-30
^{th}2014:"Workshop on Curve Based Cryptography" - On April 28- May 2
^{th}2014: "Tropical Geometry in Europe" - On April 14
^{th}2014: "Mathematics between Research, Application and Communication" - On April 10-13
^{th}2014: "European Mathematics Society Presidents Meeting" - On March 27-29
^{th}2014: "Workshop on Model Theory and Groups II" - On March 7
^{th}2014: "Adding Numbers and Shuffling Cards" - On February 28
^{th}2014: "Intersection theory on singular varieties" - On February 10
^{th}2014: "Algebraic cycles and crystalline cohomology" - On February 3
^{th}2014: "Problems of bounding the p-length and Fitting height of finite soluble groups" - On January 30
^{th}2014: "On the Borel Complexity of Characterized Subgroups" - On January 10-12
^{th}2014: "Caucasian Mathematics Presidents Meeting"

- On November 20
^{th}2013: "Mixed functions of strongly polar weighted homogeneous face type" - On November 11-12-18
^{th}2013: "Toric Modification" - On October 4
^{th}2013: "Holonomy groupoid and C-algebra of a singular foliation and applications" - On September 13-14
^{th}2013: "Workshop on Model Theory and Groups" - On August 26-30
^{th}2013: "Quantum Field Theory Meetings" - On August 26-30
^{th}2013: "IMBM Probability Seminars" - On August 26-30
^{th}2013: "Boğaziçi University Financial Engineering Meeting" - On August 26-30
^{th}2013: "Turkish Women in Mathematics / Geometry-Topology Summer School" - On August 12-17
^{th}2013: "Open Questions in an Open Universe Workshop" - On August 2
^{th}2013: "Green functions and sharp point-wise interpolation inequalities" - On June 26
^{th}2013: "Hamiltonian dynamical systems with infinitely many periodic orbits and beyond" - On June 17-21
^{th}2013: "Istanbul Summer School in Algebraic Geometry" - On June 12-14
^{th}2013: "Istanbul Summer School in Algebraic Geometry - Preparatory Lectures" - On May 27
^{th}2013: "Cluster algebras, quiver mutation and triangulations" - On April 4
^{th}2013: "A Mini Course on Shock Wave Collisions in D-dimensions" - On March 30
^{th}2013: "Low Dimensional Topology Workshop" - On March 25
^{th}2013: "Unramified class field theory of schemes" - On February 21
^{th}2013: "İstanbul Model Theory Meetings" - On February 16
^{th}2013: "İstanbul Number Theory Meetings" - On February 12
^{th}2013: "Supersymmetric Completion of Gauss-Bonnet Combination in Five Dimensions" - On January 27-30
^{th}2013: "Topological Groups"

- On December 28
^{th}2012: "Quantum Field Theory Meetings" hold. Please click here for the poster. - On December 28
^{th}2012: Matthias Kreck from Hausdorff Center for Mathematics, Bonn gave a talk titled "Real 3-manifolds and Codes". Please click here for the poster. - On December 22
^{nd}2012: Aaron Silberstein from University of Pennsylvaniawill gave a talk titled "Varieties determined by their étale fundamental groups". Please click here for the poster. - On December 21
^{st}2012: "Quantum Field Theory Meetings" hold. Please click here for the poster. - On December 17
^{th}– December 21^{st}2012, Aaron Silberstein from University of Pennsylvania gave a series of lectures on “Anabelian Geometry over Algebraically Closed Fields”. Please click here for the program. - On December 14
^{th}2012: "Quantum Field Theory Meetings" hold. Please click here for the poster. - On December 7
^{th}2012: "Quantum Field Theory Meetings" hold. Please click here for the poster. - On November 30
^{th}2012: "Quantum Field Theory Meetings" hold. Please click here for the poster. - On November 28
^{th}2012: "Discrete Mathematics Meetings" hold. Please click here for the poster. - On November 23
^{rd}2012: "Quantum Field Theory Meetings" hold. Please click here for the poster. - On November 16
^{th}2012: "Quantum Field Theory Meetings" hold. Please click here for the poster. - On November 9
^{th}2012: David E. Nadler from University of California, Berkeley gave a talk titled "Traces and Loops". Please click here for the poster. - On November 2
^{nd}2012: "Quantum Field Theory Meetings" hold. Please click here for the poster. - On October 19
^{th}2012: "Quantum Field Theory Meetings" hold. Please click here for the poster. - On October 11
^{th}- 12^{th}2012: a workshop hold titled "Graph Theory and Applications Workshop III". Please click here for detailed information. - On October 8
^{th}2012: Instituto de Matemáticas, Universidad Nacional Autónoma de México'dan gave a talk titled "φ and σ: from Euler to Erdös". Please click here for the poster. - On October 5
^{th}2012: "Quantum Field Theory Meetings" were held. Please click here for the poster. - On October 1
^{st}2012: Joel Spencer from Courant Institute, New York gave a talk titled "Two Needles in Exponential Haystacks". Please click here for the poster. - On September 28
^{th}2012: "Quantum Field Theory Meetings" were held. Please click here for the poster. - On September 20
^{th}2012: Robert Boltje from University of California, Santa Cruz gave a talk titled "Monoid Algebras and Category Algebras". Please click here for the poster. - On August 7
^{th}- 10^{th}2012: a workshop were held titled "Interfaces of Noncommutative Geometry with the Representation Theory of Hopf Algebras and Artin Algebras". Please click here for the poster. - On July 16
^{th}- 20^{th}2012: an international probability workshop were held, titled "Random Networks & Environments". Please click here for the poster. - On July 2
^{nd}2012: Richard S. Ellis from University of Massachusetts Amherst gave a talk titled "From Large Deviations to Statistical Mechanics: What Is the Most Likely Way for an Unlikely Event To Happen?". Please click here for the poster. - On June 29
^{th }- 30^{th }2012: a workshop were held titled "Workshop on Group Functors". Please click here for the poster. - On June 18
^{th }2012: Rainer Kress from University of Göttingen gave a talk titled "Iterative Methods In Inverse Obstacle Scattering Revisited". Please click here for the poster. - On June 7
^{th}- 8^{th}2012: "IMBM Math Days" were held. Please click here for the poster. - On June 6
^{th }2012: Paul Koerber from Katholieke Universiteit Leuven gave a talk titled "Consistent Reductions of M-Theory". Please click here for the poster. - On June 4
^{th }2012: Ciprian Manolescu from University of California, Los Angeles gave a talk titled "Combinatorial Heegaard Floer Theory". Please click here for the poster. - On May 11
^{th }2012: Joris Raeymaekers from Prague Institute of Physics gave a talk titled "Conical Spaces in Higher Spin Gravity". Please click here for the poster. - On April 27
^{th }2012: Josef Leydold from Wirtschaftsuniversität Wien gave a talk titled "Sign Patterns of Graph Laplacian Eigenvectors". Please click here for the poster. - On April 14
^{th }2012: Cem Yalçın Yıldırım from Boğaziçi University gave a talk titled "A Survey of Recent Results on Small Gaps Between Primes". Please click here for the poster. - On April 13
^{th}2012: Alberto Grünbaum from University of California, Berkeley gave a talk titled "Quantum Walks, Limit Theorems and Recurrence". Please click here for the poster. - On April 10
^{th}2012: Gábor Domokos from Budapest University of Technology and Economics gave a talk titled "Pebbles, Turtles and the Gömböc: Natural Numbers and Natural Shapes". Please click here for the poster. - On April 9
^{th}2012: Mahdi Torabian from ICTP, Trieste gave a talk titled "M-Theory on Singular G2-Manifolds, Phenomenology and Cosmology of the Vacua". Please click here for the poster. - On April 6
^{th}2012: Fatihcan Atay from Max Planck Institute for Mathematics in the Sciences, Leipzig gave a talk titled "Dynamic Systems on Graphs". Please click here for the poster. - On March 2
^{nd}2012: Bernard Ries from Université Paris Dauphine, LAMSADE gave a talk titled "On the use of graphs in discrete tomography." Please click here for the poster. - On February 17
^{th}2012: Arman Boyacı from Boğaziçi University gave a talk titled "Some graph classes related to telecommunicaton networks". Please click here for the poster. - On February 9
^{th}2012: Henning Samtleben from Université de Lyon, ENS gave a talk titled "New Superconformal Models In Six Dimensions". Please click here for the poster. - On February 2
^{nd}2012: M. M. Sheikh-Jabbari from IPM, Tehran gave a talk titled "Gauge-Flation: Non-Abelian Gauge Field Inflation". Please click here for the poster. - On January 20
^{th}2012: Öznur Yaşar Diner from Kadir Has University gave a talk titled "Graph Search Problem. Please click here for the poster. - On January 10
^{th}2012: Bernard Helffer from Université Paris Sud gave a talk titled "Spectral Properties of Schrödinger Operators with Magnetic Fields in the Semi-Classical Regime". Please click here for the poster. - On January 9
^{th}2012: Bernard Helffer from Université Paris Sud gave a talk titled "An Introduction to Minimal Spectral Partitions". Please click here for the poster. - On January 3
^{rd}2012: Ryan O'Donnell from Carnegie Mellon University gave a talk titled "Noise Stability of Boolean Functions". Please click here for the poster.

- On December 30
^{th}2011: Mert Gürbüzbalaban from Courant Institute gave a talk titled "Algorithms for Approximating the H_{∞}Norm". Please click here for the poster. - On December 23
^{rd}2011: Onur Gün from Weierstrass Institute gave a talk titled "Parabolic Anderson Model with Finite Number of Moving Catalysts". Please click herefor the poster. - On December 16
^{th }2011: Süleyman Üstünel from ENST, Paris gave a talk titled "Entropic Considerations on Wiener Space". Please click here for the poster. - On November 25
^{th}2011: Savaş Dayanık from Bilkent University gave a talk titled "Quickest Detection of a Sudden Change in the Law of a Compound Poisson Process". Please click here for the poster. - On November 18
^{th }2011: Lale Özkahya from Bilgi University gave a talk titled "Extreme Problems in Graph Theory and its Applications on Hypercube". Please click here for the poster. - On October 31
^{st}2011: Marta Sanz-Solé from University of Barcelona gave a talk titled "Sets Visited by Random Paths". Please click here for the poster. - On October 21
^{st}2011: Anthony Lau from University of Alberta gave a talk titled "Positive Definite Function and Fourier-Stieltjes Algebra of a Locally Compact Group". Please click here for the poster.^{ } - On October 7
^{th}2011: Şerban Strătilă from Institute of Mathematics of the Romanian Academy gave a talk titled "Dixmier Sets, Numerical Ranges, Commutation and Splitting Theorems". Please click here for the poster. - On August 2
^{nd}2011: Sorin Dascalescu from University of Bucharest gave a talk titled “Hopf Algebras with Non-zero Integrals, Path Subcoalgebras and Quantum Groups”. Please click here for the poster. - On July 20
^{th}, “Workshop on Algebras on Discrete Structures” hold. Please click here for the program. - On July 12
^{th}– July 15^{th}2011, “Noncommutative Geometry Workshop” hold. Please click here for the program. - On July 7
^{th}2011: Viktor Ginzburg from University of California, Santa Cruz gave a talk titled “Conley Conjecture and Beyond: Infinitely Many Periodic Points of Hamiltonian Dynamical Systems”. Please click here for the poster. - On July 1
^{st}2011: Matthew Kleban from New York University gave a talk titled “Watching Worlds Collide”. Please click here for the poster. - On June 29
^{th}2011: Jie Shen from Purdue University gave a talk titled “Phase-Field Models for Multiphase Complex Fluids: Modeling, Numerical Analysis and Simulations”. Please click here for the poster. - On June 29
^{th}2011: Min Chen from Purdue University gave a talk titled “Boussinesq Systems for Water Waves”. Please click here for the poster. - On June 15
^{th}2011: Massimo Porrati from New York University gave a talk titled “Surprises with Interacting High Spin Particles”. Please click here for the poster. - On June 13
^{th}– June 14^{th}2011: “Tenth Colloquiumfest On Valuation Theory and Algebraic Geometry” hold. Please click here for the program. - On June 7
^{th}– June 11^{th}2011: “Finite Groups and Their Automorphisms” hold. Please click here for the poster. - On June 6
^{th}2011: Conan Leung from The Chinese University of Hong Kong gave a talk titled “SYZ Mirror Symmetry”. Please click here for the poster. - On May 25
^{th}2011: Shu Sasaki from King's College, London gave a talk titled “Mod 5 Icosahedral Representations and Applications to a Conjecture of Artin”. Please click herefor the poster. - On May 16
^{th}2011: Çağatay Kutluhan from Columbia University gave a talk titled “Heegard Floer Meets Seiberg-Witten”. Please click here for the poster. - On May 13
^{th}2011: Müge Kanuni from Bogazici University gave a talk titled “Algebras and Graphs”. Please click here for the poster. - On May 11
^{th}– May 12^{th}2011: Denis Cheniot from Universite d'Aix Marseille I gave a series of lectures on “Topology of Algebraic Varieties and Their Complements”. Please click here for the program. - On May 9
^{th}– May 13^{th}2011: “Mini Workshop On The Kadison-Singer Problem” hold. Please click here for the program. - On May 2
^{nd}– May 6^{th}2011: “İstanbul Contact and Symplectic Topology Workshop” hold. Please click here for the program. - On April 15
^{rd}2011: Güneş Erçal from University of California gave a talk titled “Topics in Randomized Algorithms”. Please click here for the poster. - On March 11
^{rd}2011: Tadashi Ochiai from Osaka University gave a talk titled “Iwasawa Theory for Hida Deformations of GL(2)”. Please click here for the poster. - On February 7
^{th}- 8^{th}2011: Henning Samtleben from Université de Lyon, ENS gave a series of lectures on String Theory. Please click here for the program. - On February 4
^{th}2011: Jens Hoppe from Royal Institute of Technology, Stockholm, GAVE a talk titled Fundamental Structures of M(-brane) Theory. Please click here for the poster.

- On December 23
^{rd}2010, Volker Runde from Alberta University gave a talk titled “Big Things Are Rarely Amenable”. Please click here for the poster. - On December 17
^{th}2010, Selman Akbulut from Michigan State University gave a talk titled “Dolgachev Surfaces”. Please click here for the poster. - On December 13
^{th}2010, John Morgan from Simons Center for Geometry and Physics at Stony Brook University gave a talk titled “The Poincaré Conjecture and The Nature of 3-Manifolds”. Please click here for the poster. - On November 26
^{th}2010, Elvan Ceyhan from Koç University gave a talk titled “Domination Number of Random Proximity Catch Digraphs: Theory and Applications”. Please click here for the poster. - On November 4
^{th}2010, Xavier Bressaud from Université de Toulouse and Galatasaray University gave a talk titled “Self-similar Tilings and Local Rules:The Tribonacci Case”. Please click here for the poster. - On October 28
^{th}2010, George Barker from University of Missouri gave a talk titled “Lattices of Faces of a Finite Dimensional Cone”. Please click here for the poster. - On October 22
^{nd}2010, George Barker from University of Missouri gave a talk titled “Graphs and Cone Preserving Maps”. Please click here for the poster. - On October 14
^{th}– October 19^{th}2010, Christian Kassel from Université de Strasbourg and CNRS gave a series of lectures titled “Noncommutative Principal Fiber Bundles”. Please click here for the program. - On August 25
^{th}– August 27^{th}2010, “Nonlinear Dispersive Equations” conference hold. For more information, please check here. - On July 22
^{nd}2010, at 15:00, Cosmas Zachos from Argonne National Laboratory (USA) gave a talk titled “Holographic Interpolation and Schroeder’s Equation”. Please click here for the poster. - On July 3
^{rd}– July 5^{th}2010, “Algebra Workshop II” hold in honour of Prof. Cemal Koç. Please click here for the program. - On June 25
^{th}- June 27^{th}2010, "Noncommutative Geometry Days in Istanbul Workshop" hold. For more information, please check here regularly. - On June 7
^{th}- June 10^{th}2010 “İstanbul Contact Geometry and Topology Workshop” hold. For more information, please check here regularly. - On June 7
^{th}2010, at 11:00, David Gabai from Princeton University gave a talk titled “Volumes of Hyperbolic 3-Manifolds” at Natuk Birkan Auditorium. Please click here for the poster. - On June 1
^{st}- 3^{rd}2010, Bijan Bagchi from University of Calcutta gave a series of lectures on “Isospectrality of Conventional and New Extended Rational Potentials in Quantum Mechanics”. Please click here for the program. - On May 24
^{th}– 27^{th}2010, Nikolai Nikolski from Université de Bordeaux I and Steklov Institute of Mathematics gave a short intensive course titled “The Kadison-Singer Problem, the State of the Art”. Please click here for the program. - On May 21
^{st}2010, at 14:00, Cihan Saçlıoğlu from Sabancı University gave a talk titled “4-Manifolds and Us”. Please click here for the poster. - On May 14
^{th}2010, at 11:00, Ali Pusane from Boğaziçi University gave a talk titled “Graphs in Modern Coding Theory”. Please click here for the poster. - On April 30
^{th}2010, at 11:00, Chris Rodger from Auburn University gave a talk titled “Small Cycle Systems”. Please click here for the poster. - On April 28
^{th}2010, at 16:15, Enrique Zuazua from Basque Center for Applied Mathematics gave a talk titled “Large Time Asymptotics for Partially Dissipative Hyperbolic Systems”. Please click here for the poster. - On April 27
^{th}2010, at 14:00, Enrique Zuazua from Basque Center for Applied Mathematics gave a talk titled “Control of Heat Processes: Theory and Numerics”. Please click here for the poster. - On April 14
^{th}2010, at 14:00, Kazunori Nakamoto from University of Yamanashi gave a talk titled “Toward a new construction of D_{5}–singularities”. Please click here for the poster. - On April 8
^{th}2010, at 15:00, Robin Wilson from Open University (UK) gave a talk titled “Four Colors Suffice”. Please click here for the poster. - On April 2
^{nd}2010, at 11:00, Mordo Shalom from Tel Hai Academic College (Israel) gave a talk titled “Switching Cost in Optical Networks and Traffic Grooming”. Please click here for the poster. - On March 26
^{th}2010, at 14:00, Sergey Zelik from University of Surrey gave a talk titled “Vanishing Viscosity Method for Rate-independent Processes with Non-convex Potentials”. Please click here for the poster. - On March 26
^{th}2010, at 11:00, Ulrich Tamm from Marmara University gave a talk titled “Tilings and Packings of the*n*-space by Cubes with Applications in Coding and Graph Theory”. Please click here for the poster. - On March 10
^{th}2010, at 10:00, IMBM host two talks in the honor of Lê Dũng Tráng. The talks was around Theory of Singularities. Please find attached the program. - On February 29
^{th}2010, at 11:00, Flavio d’Alessandro from University of Rome ‘La Sapienza’ and Boğaziçi University gave a talk titled “Cerny Conjecture, Formal Languages, Synchronizing Automata”. Please click here for the poster. - On February 10
^{th}2010, at 14:30, Henning Samtleben from Université de Lyon, ENS gave a talk titled “Gauged Supergravities and Flux Compactifications”. Please click herefor the poster. - On February 9
^{th}– 10^{th}2010 Henning Samtleben from Université de Lyon, ENS gave a series of lectures on “Gauged Supergravities”. Please click here for the program. - On January 13
^{th}2010, at 14:00, Antony Scholl from Cambridge University gave a talk titled “Hypersurfaces and The Weil Conjectures”. Please click here for the poster. - On January 8
^{th}2010, at 11:00, Benjamin Smith from Koç University gave a talk titled “Graph Decomposition Problems”. Please click here for the poster.

- On December 25
^{th}2009, at 14:00, Onur Gün from Université de Provence-Aix Marseille-I gave a talk titled “Universality of Transient Dynamics and Aging for Spin Glasses”. Please click here for the poster. - On December 18
^{th}2009, at 15:00, Umut Gürsoy from Utrecht University gave a talk titled “The AdS/CFT Correspondence and QCD”. Please click here for the poster. - On November 16, 2009, at 11:00, Cem Güneri from Sabancı University gave a talk titled “Introduction to Coding Theory”. Please click here for the poster.
- On October 16, 2009, at 14:00, Murad Özaydın from University of Oklahoma gave a two-hour talk titled “The Discrete Charms of Topology”. Please click here for the poster.
- On October 16, 2009, at 11:30, Patrick Smith from University of Glasgow gave a talk titled “Chain Conditions in Modular Lattices”. Please click here for the poster.
- On October 14, 2009, at 14:00, Ben Green from University of Cambridge gave a talk titled “Approximate Structure”. Please click here for the poster.
- On September 8-11, 2009, there were a workshop on Group and Measure Algebras where Professor Garth Dales from the University of Leeds, gave 3 lectures. Please check the first, the second and the third abstract.
- On July 2, 2009, at 15:00, Başak Gürel of Vanderbilt University gave a talk titled “Leaf-wise Coisotropic Intersections”. Please click here for the poster.
- On July 2, 2009, at 14:00 Viktor Ginzburg of University of California, Santa Cruz gave a talk titled “Differentiating Between Contact Structures: From Contact Homology to Elementary Invariants”. Please click here for the poster.
- On June 15, 2009, at 14:00 Moshe Jarden from Tel Aviv University gave a talk titled “The Transfer Theorem”. Please click here for the poster.
- On June 15-19, 2009, an Algebra Workshop hold at the center. Please click herefor the poster.
- On June 5, 2009, at 11:00, Müge Taşkın of Boğaziçi University gave a talk titiled “An Introduction to Matroid Theory”. Please click here for the poster.
- On June 2, 2009, at 15:00, Gang Tian of Princeton University gave a talk titled “Geometric and Analytic Aspects of 4-Manifolds”. Please click here for the poster.
- On May 15, 2009, at 15:00, Fatih Ecevit of Boğaziçi University gave a talk titled “Helmholtz Equation: Computations, Geometry and Analysis”. Please click here for the poster.
- On May 15, 2009, at 15:00, Burak Gürel of Boğaziçi University gave a talk titled “The Heat Equation: An Introduction to the Classical Theory”. Please click here for the poster.
- On May 8, 2009, at 10:30, İbrahim Cahit Arkut of Near East University gave a talk titled “Dört Renk Teoremi’nin Uzun Tarihi ve Kısa Kanıtı”. Please click here for the poster.
- On April 21, 2009, at 15:30, Sergey Zelik of University of Surrey gave a talk titled “On the Cahn-Hilliard Equation with an Inertial Term”. Please click here for the poster.
- On April 17, 2009, at 10:30, Emine Şule Yazıcı of Koç University gave a talk titled “An introduction to Combinatorial Design Theory". Please click here for the poster.
- On April 11, 2009 at 10:30, Andrew Waldron of University of California-Davis gave a talk titled “BRST Detour Quantization”. Please click here for the poster.
- On April 10, 2009 at 14:00, Andrew Waldron of University of California-Davis gave a talk titled “Weyl Invariance and The Origins of Mass”. Please click here for the poster.
- On April 6, 2009 Atilla Yılmaz gave an introductory lecture on “Large Deviations” in order to fully appreciate Prof. Varadhan’s talk.
- On March 27, 2009, at 15:30 Varga Kalantarov of Koç University gave a talk titled “Strongly Damped Nonlinear Wave Equations”. Please click here for the poster.
- On March 27, 2009, at 14:00 Faruk Güngör of İstanbul Technical University gave a talk titled “Varyasyonel Simetriler, Noether Teoremi ve Uygulamaları”. Please click here for the poster.
- On March 27, 2009, at 11:00 Cesim Erten gave a talk titled "Bipartite Graphs, Combinatorial Problems, and An Application to Bioinformatics". Please click here for the poster.
- On February 6, 2009 Henning Samtleben of University of Lyon, ENS gave a talk at the center entitled "String Theory, Extra dimensions and Hidden Symmetries". Please click here for the poster.
- On February 5-6, 2009 Henning Samtleben of University of Lyon, ENS visited the center to give a set of lectures on "Supergravity". Please click here for the poster.

- On December 3
^{rd}, Atilla Yılmaz of Weizmann Institute of Science visited the center to give a talk entitled “Large Deviations for a Random Walk in a Random Environment”. Please click here for the poster. - On November 3
^{rd}, Günter Harder of Mathematisches Institut der Universitat Bonn gave a talk entitled “Congruences Between Eisenstein Classes and Cusp Forms”. Please click here for the poster. - On August 21
^{st}and 22^{nd}, Thierry Cazenave visited IMBM to give series of talks entitled: “Introduction to Nonlinear Schrödinger Equations”*Place and time: imbm seminar room, 10:00 – 12:00.* - On July 9
^{th}, Wednesday, Gregor Weingart of Instituto de Matematicas UNAM, Unidad Cuernavaca visited the center to give a talk titled ‘’Geometric Structure on Manifolds”. Please click here for the poster of this talk. - On June 5
^{th}, Thursday, Yum – Tong Siu of Harvard University visited IMBM to give a talk entitled: “Effective Problems on Algebraic Geometry”. Please click here for the poster of this talk - Nader Masmoudi from Courant Institute visited the center on June 9
^{th}– 15^{th}and gave a talk entitled “From Klein-Gordon-Zakharov to the Nonlinear Schrodinger”. - On May 26
^{th}– 30^{th}, 2008, Nikolai K. Nikolski of University Bordeaux 1 gave a number of a short courses titled “The Efficient Inversion Problem (Numerization of Gelfand’s Theory). Please click here for detailed information. - Erhan Bayraktar from the University of Michigan visited the center between May 9
^{th}– 13^{th}and on May 12^{th}, at 2:30 pm he gave a talk entitled “A Unified Framework for Pricing Credit and Equity Derivatives”. Please click here for the poster of this talk. The paper is available at: http://arxiv.org/abs/0712.3617 - Gilles Pisier of Texas A&M University and UPMC – Paris VI gave a talk entitled “Complex Interpolation Between Operator Spaces” on 14
^{th}May, Wednesday. Please click here for the poster of this talk. - On May 2
^{nd}Hüsnü Erbay of Işık University visited IMBM to give a talk titled “An Elementary Introduction to Nonlinear Dispersive Equations”. Please click here for the poster of this talk.

- On December 10
^{th}, Monday, there was a "One – Day Analysis Meeting", on the occasion of Ali Ülger’s 60^{th}birthday. Please click here for the program for the day. - On November 9
^{th}, Friday, there were consecutive talks under the title: "Geometry-Topology and Physics Seminars”. Please click here for detailed information. - On October 26
^{th}, Friday, P. E. Souganidis of University of Texas at Austin visited IMBM to give a talk titled "New Results on Homogenization". Please click here for the poster of this talk. - On October 19
^{th}, Friday, Alp Eden of Boğaziçi University was at IMBM to give a talk titled “Standing Waves for 2D Almost Cubic NLS”. The detailed information can be found here. - On November 8
^{th}, Monday, Akio Fujii of Rikkyo University visited IMBM to give a talk on titled "On the Farely Series and the Hecke L-Functions". Please click here for the poster of this talk. - Viktor Ginzburg of UC Santa Cruz will visited IMBM on July 17
^{th}, Tuesday. Please click here for the poster of this talk. - On July 16
^{th}- 20^{th}, there was a mini workshop on “Symmetries in M-Theory”. Please click here for detailed information. - Luis Caffarelli and Irene Gamba of University of Texas will visited IMBM on July 9
^{th}, Monday. Please click here for the poster of this talk. - On June 26
^{th}, Tuesday, at 3 pm, Victor Kac of MIT gave a talk titled “Quantization and Chiralization”. The poster of this talk can be found here. - On June 14
^{th}, Friday, Haseo Ki of Yonsei University will be visited IMBM to give a talk titled ”The Zeroes of Sums of the Riemann Zeta Function”. Please click here for the poster of this talk. - Selman Akbulut of Michigan State University visited IMBM to provide a talk titled ”Corks, Palfs and Other Good Things” on June, 8
^{th}, Friday at 2 pm. Please click here for the poster of this talk. - Burak Erdoğan of University of Illinois visited IMBM to give a talk titled “Dispersive Estimates for the Schrödinger Equation with a Magnetic Potential”, on June, 6
^{th}, Wednesday at 3:30 pm. Please click here for the poster of this talk. - There was a mini workshop titled “Effective Field and Gravity Theories” on 4
^{th}-5^{th}, June, 2007. Please click here for detailed information about the organization. - Charles Akemann of UC Santa Barbara visited IMBM during May 15
^{th}-23^{rd}for a mini workshop on the Kadison-Singer Conjecture. He gave a talk on May 18^{th}, Friday. He was supported by the US National Committee for Mathematics. - On April 27
^{th}, Friday, Murat Sağlam of Boğaziçi University and Tolga Etgu of Koç University visited IMBM to give talks. The poster of the day can be found here. - Nizar Touzi of Ecole Polytechnique visited IMBM on Friday, April 13, 2007.
- From University of Surrey, Sergey Zelik talked on Navier-Stokes’ equations in unbounded domains on April 11, 2007.
- Edriss S. Titi of UC, Irvine and Weizmann Institute, Israel, visited IMBM for a mini workshop on Navier-Stokes’ equations on April 6, 2007. He was supported by the US National Committee for Mathematics.
- On March 30, 2007, Alex Iosevich from University of Missouri-Columbia gave a talk.
*Reading Seminars in Partial Differential Equations*, were held on every Friday at 10:00 during Spring 2007 semester. The program can be found here.- Geometry-Topology and Physics Seminars began on March 23, 2007. Click for the poster of the first seminar.
- Peter Symonds from University of Manchester provided a talk on March 19, 2007.
- On 12 January 2007 Varga Kalantarov of Koc University and Alp Eden of Bogazici University provided a talk on Cahn-Hilliard Equation. Click here for the poster of this talk.

- Pierre Louis Lions gave a talk about his recent research topic on 17 November 2006. Here you can find the poster of this lecture.
- Small Gaps Between Primes Workshop was held between 9 October and 13 October 2006. Supported by the US National Committee for Mathematics, Dan Goldston and Janos Pintz gave lectures on their joint research with Cem Yalçın Yıldırım.

August 19, 2020, 15.00

Abstract: In this talk we will give a discussion on a program which aims to present a combinatorial approach to the exceptional Lie group G2 and its Lie algebra. We give various results about the algebraic structure. We also prove some of the old results in terms of our approach.

August 19, 2020, 15.00