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Bibliographic Details
Main Authors: Hazeltine, Alexander, Lo, Chi-Heng
Format: Preprint
Published: 2026
Subjects:
Online Access:https://arxiv.org/abs/2604.11049
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Table of Contents:
  • We give an algorithm to compute the Pyasetskii involution for $\mathrm{Sp}_{2n}$, $\mathrm{SO}_{2n+1}$ and $\mathrm{O}_{2n}$. The algorithm is a combination of Moeglin-Waldspurger's algorithm for the Pyasetskii involution for $\mathrm{GL}_n$ ([MW86]) and Lanard-M${í}$nguez's algorithm for the Aubert-Zelevinsky involution of bad parity representations for classical groups ([LM25]). In particular, we give a geometric interpretation of the bad parity case of Lanard-M${í}$nguez's algorithm.