Semisimple types for quaternionic forms of p-adic classical groups and compatible beta-extensions

Abstract

Let $G$ be a quaternionic form of a $p$-adic classical group ($p$ odd). We construct a Bushnell-Kutzko-Stevens type for every Bernstein block of the category of smooth complex representations of $G$. Further we construct a system of compatible ${\hat{I}}^2$-extensions, i.e. a family of ${\hat{I}}^2$-extensions parametrised by the points of a chamber of the Bruhat-Tits building of the centralizer $G_{\hat{I}}^2$ which are related via transfer.

45 pages