collaborators

2 papers

math.RT2025

Mod Weil representations and Deligne--Lusztig inductions for unitary groups

Naoki Imai, Takahiro Tsushima

We study the mod Weil representation of a finite unitary group and related Deligne--Lusztig inductions. In particular, we study their decomposition as representations of a s…

math.RT2025

Shintani lifts for Weil representations of unitary groups over finite fields

Naoki Imai, Takahiro Tsushima

We construct extended Weil representations of unitary groups over finite fields geometrically, and show that they are Shintani lifts for Weil representations.