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Bibliographic Details
Main Author: Morando, Basile
Format: Preprint
Published: 2025
Subjects:
Online Access:https://arxiv.org/abs/2506.24029
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Table of Contents:
  • We show that the left regular representation of Neretin groups is factorial, providing the first example of a non-discrete simple group with this property. This is based on a new criterion of factoriality for totally disconnected groups. For groups G satisfying the criterion, we determine the type of the factor L(G) and derive factoriality results for crossed products associated to G-actions on von Neumann algebras.