Title: Restriction between cohomology algebras of blocks of finite groups
Autor: C.C. Todea;   
Abstract: 

Let $k$ be an algebraically closed field
of characteristic $p$ and $G$ be a finite group. Let $N$ be a normal
subgroup of $G$ and $c$ be  a $G$-stable block of $kN$. We shall
discuss the cohomology algebra of the  block $c$, defined by M.~
Linckelmann and, in this case a generalized block cohomology which
can be defined using some generalized Brauer pairs, denoted
$(c,G)$-Brauer pairs, which were are introduced by R.~Kessar and R.~
Stancu. We also analyze the restriction map between these two
cohomology algebras associated to the block $c$ through transfer
maps between the Hochschild cohomology algebras of $kGc$ and of the
block $c$.

Status: to appear "Algebras and Representation Theory"