Some complete intersection symplectic quotients in positive characteristic: invariants of a vector and a covector

Cédric Bonnafé, G. Kemper

Given a linear action of a group $G$ on a $K$-vector space $V$, we consider the invariant ring $K[V\oplus V^{\ast }{]}^G$, where $V^{\ast }$ is the dual space. We are particularly interested in…