Mary Schaps

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20232025

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math.RT2025

Quotients of Buildings by Non-uniform Lattices

Orit Sela, Mary Schaps, Uzi Vishne

We consider quotients of the Bruhat-Tits building associated to the projective linear groups of dimension $d > 2$ over the function field $F_{q} (t)$ by a non-uniform lattice $Γ…

math.RT2024

Elementary equivalences for blocks with normal elementary abelian defect group of rank 2

Mary Schaps, Zehavit Zvi

We consider the effect of performing an elementary equivalence as defined by Okuyama on a group block of form $F (C_{p} \times C_{p}) ⋊ C_{r}$ , for a field $F$ of characteristic $p$ .…

math.RT2023

Faces in Crystals of Affine Type A and the Shape of Canonical Basis Elements

Ola Amara-Omari, Ronit Mansour, Mary Schaps

For a dominant integral weight $Λ$ in a Lie algebra of affine type A and rank $e$ , and an interval $I_{0}$ in the residue set $I$ , we define the face for the interval $I_{0}$ to be the…