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math.RT2026
Categorical representations of algebraic groups in positive characteristic
Pramod N. Achar, Gurbir Dhillon, Simon Riche
In this paper we present a formalism of categorical representation theory for affine group schemes of finite type over fields (both in the weak and strong settings) which applies t…
math.RT2026
Steinberg quotients and Smith-Treumann localization
Pramod N. Achar, Paul Sobaje
Smith-Treumann localization for sheaves on the affine Grassmannian of a reductive group has previously been studied by Leslie-Lonergan (for spherical sheaves) and by Riche-Williams…