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Proceedings of the American Mathematical Society

Published by the American Mathematical Society since 1950, Proceedings of the American Mathematical Society is devoted to shorter research articles in all areas of pure and applied mathematics.

ISSN 1088-6826 (online) ISSN 0002-9939 (print)

The 2020 MCQ for Proceedings of the American Mathematical Society is 0.85.

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Diffuse invariant random subgroups
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by Simon Thomas PDF
Proc. Amer. Math. Soc. 150 (2022), 5417-5419 Request permission

Abstract:

There exist countable groups $G$ with ergodic invariant random subgroups $\nu$ such that $\nu (\, \{\, H \in \mathrm {Sub}_{G} \mid H \cong K \,\}\,) = 0$ for every subgroup $K \leqslant G$.
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Additional Information
  • Simon Thomas
  • Affiliation: Department of Mathematics, Rutgers University, Piscataway, New Jersey 08854-8019
  • MR Author ID: 195740
  • Email: simon.rhys.thomas@gmail.com
  • Received by editor(s): January 22, 2022
  • Received by editor(s) in revised form: February 25, 2022
  • Published electronically: June 30, 2022
  • Communicated by: Martin Liebeck
  • © Copyright 2022 American Mathematical Society
  • Journal: Proc. Amer. Math. Soc. 150 (2022), 5417-5419
  • MSC (2020): Primary 37A15
  • DOI: https://doi.org/10.1090/proc/16089