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math.RT2024
-character stacks and Langlands duality over finite fields
Emmanuel Letellier, Tommaso Scognamiglio
In this paper we study the mixed Poincaré polynomial of generic -character stacks with coefficients in some local systems arising from the conjugacy cla…
math.RT2024
Ennola duality for decomposition of tensor products
Emmanuel Letellier, Fernando Rodriguez-Villegas
The aim of this paper is to investigate Ennola duality for decomposition of tensor products of irreducible characters of finite general linear groups and finite unitary groups. We…