The extension algebra of some cohomological Mackey functors

Details The extension algebra of some cohomological Mackey functors The extension algebra of some cohomological Mackey functors

2010-10-07

arxiv.org/abs/1010.1346v1

Mathematics

Group Theory

Scientific paper

Let $k$ be a field of characteristic $p$. We construct a new inflation
functor for cohomological Mackey functors for finite groups over $k$. Using
this inflation functor, we give an explicit presentation of the graded algebra
of self extensions of the simple functor $S_\un^G$, when $p$ is odd and $G$ is
an elementary abelian $p$-group.

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