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Bibliographic Details
Main Author: Vollrath, Paul
Format: Preprint
Published: 2025
Subjects:
Online Access:https://arxiv.org/abs/2510.15161
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Table of Contents:
  • We prove Papikian's conjecture on the spectrum of the signed up-down walk on the spherical building. Namely, we show that in the spherical building of dimension n-2 and thickness q + 1, the number of distinct eigenvalues is independent of q and for q going to infinity the positive eigenvalues converge to n-1, ... , n-i.