Robert Boltje (born February 14, 1960) is a mathematician whose research interests include finite groups, their representations, and applications to number theory. He studied in Munich where he received his diploma in 1985. He then moved to Augsburg where he obtained his doctorate under the direction of Jürgen Ritter. The title of his Ph. D. thesis was "Canonical and explicit Brauer induction in the character ring of a finite group and a generalization for Mackey functors". He completed his habilitation in Augsburg in 1995, with a thesis on "Mackey functors in representation theory and number theory". He was a postdoctoral fellow from 1990 to 1992 and a Heisenberg fellow from 1997 to 1998, supported by grants from the Deutsche Forschungsgemeinschaft. In 1999 he moved to the University of California at Santa Cruz where he is now a full professor.

Robert Boltje became known first through his fundamental work on induction theorems in representation theory. This circle of ideas was partially motivated by questions in number theory and continued research of Artin and Brauer. Robert Boltje then realized that his methods carry over to Mackey and biset functors on finite groups. Thus many of his papers are now concerned with these functorial methods in representation theory which also have applications in number theory.

More recently, he has worked on open conjectures in representation theory, formulated by Alperin, Broué, Dade and others. These conjectures link blocks of representations of finite groups to blocks of representations of local subgroups. With his coauthors, he introduced p-permutation equivalences between blocks and studied their properties. This also led him to investigate Picard groups of blocks, in joint work with Kessar and Linckelmann.

Robert Boltje was awarded a number of prizes, both for his research and his teaching. In Santa Cruz, he led several students to their Ph. D. His coauthors include mathematicians from Germany, Mexico, Turkey and the UK.

Introduction by Burkhard Külshammer
Poster (A3) of the conference can be found here.


Baptiste Rognerud (Bielefeld University)
Benjamin Sambale (Leibniz Universität Hannover)
Cédric Bonnafé (Université de Montpellier)
Caroline Lassueur (TU Kaiserslautern)
Çisil Karagüzel (UC Santa Cruz)
Deniz Yılmaz (UC Santa Cruz)
Ergün Yalçın (Bilkent University)
Gerardo Raggi-Càrdenas (Centro de Ciencias Matemáticas UNAM)
Hatice Mutlu (UC Santa Cruz)
Justin Lynd (UL Lafayette)
Laurence Barker (Bilkent University)
Markus Linckelmann (City University of London)
Nadia Romero (DEMAT, UGTO)
Radha Kessar (City University of London)
Rob Carman (William and Mary)
Serge Bouc (CNRS-LAMFA)


The conference takes place at the IMBM (Istanbul Center for Mathematical Sciences) which is located on the south campus of Bogazici University, indicated by an X on this campus map. One can find more detailed information here. The address of the university is

Bogazici University South Campus (Bogazici Universitesi Guney Kampus) 34342 Bebek, Istanbul, TURKIYE


To be announced later.

Registration and Contact

To attend the conference, please register. There is no conference fee. For further information contact the organizer Olcay Coşkun at olcay.coskun 'at'


To be announced later.

The conference is supported by

Practical Info

Arrival to South Campus: