Non-admissibility of some universal supersingular representations

Zachary Feng, Heejong Lee, Ray Li +2

Let $K/{\mathbf{Q}}_p$ be an unramified extension of degree $f$ with residue field $k$. Let $\ddot{I}ƒ$ be an irreducible representation of ${\mathrm{GL}}_n(k)$ over ${\overline{\mathbf{F}}}_p$…