Oberseminar Geometrie, Topologie und Gruppentheorie - Jürgen Müller (RWTH Aachen): The abelian defect group conjecture for sporadic groups
Thursday, 13.01.2011 10:00 im Raum SR 1D
Let G be a finite group, let A be a prime block of G having
an abelian defect group P, let N be the normaliser in G of P,
and let B be the Brauer correspondent of A. Then the abelian
defect group conjecture says that the bounded derived categories
of the module categories of A and B equivalent as triangulated
categories. Although this conjecture is in the focus of intensive
studies since two decades now, it has only been verified for
certain cases and a general proof seems to be out of sight.
In this talk, we briefly introduce the notions to state the
abelian defect group conjecture, and report on the current state
of knowledge, and on the strategies to prove it for explicit
examples. Then we show how these strategies are pursued and
combined with techniques from computational representation theory
to prove the abelian defect group conjecture for some of the
sporadic simple groups; this is joint work with Shigeo Koshitani
and Felix Noeske.
Angelegt am Monday, 10.01.2011 13:09 von N. N
Geändert am Monday, 10.01.2011 13:10 von N. N
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