Zehavit Zvi

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math.RT2026

Efficiency of mutation reduction for Brauer trees

Zehavit Zvi

Brauer tree algebras are important and fundamental blocks in the modular representation theory of groups. Aihara develped an algorithm, which we call a mutation reduction, for gett…

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 $p$ .…