Some formulae relating modular representations of elementary abelian $p$-groups

Jonathan Elmer, Kazal Kadr

Let $p>0$ be a prime, $k$ a field of characteristic $p$ and $G$ and elementary abelian $p$-group of order $q=p^n$. Let $W$ be an indecomposable $kG$-module of dimension 2 and def…