Cohomology of block algebras of finite groups
Markus Linckelmann
City University, London, United Kingdom
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Abstract
Block algebras are algebras which arise as indecomposable direct factors of finite group algebras, where we choose as a base ring an algebraically closed field k of prime characteristic p. The purpose of the present notes is to describe some connections between invariants of the module categories of block algebras and of their associated fusion systems, with a particular emphasis on cohomological invariants.