Publication details

On a fixed point formula of Navarro–Rizo

Authored by

Benjamin Sambale

Abstract

Let G be a π-separable group with a Hall π-subgroup H or order n. For x ∈ H let λ(x) be the number of Hall π-subgroups of G containing x. We show that Πd|nΠx∈H λ(xd) nd μ(d) = 1, where μ is the Möbius function. This generalizes fixed point formulas for coprime actions by Brauer, Wielandt and Navarro-Rizo. We further investigate an additive version of this formula.

Details

Organisation(s)
Institute of Algebra, Number Theory and Discrete Mathematics
Type
Article
Journal
Proceedings of the American Mathematical Society
Volume
152
Pages
3629-3634
No. of pages
6
ISSN
0002-9939
Publication date
09.2024
Publication status
Published
Peer reviewed
Yes
ASJC Scopus subject areas
General Mathematics, Applied Mathematics
Electronic version(s)
https://doi.org/10.48550/arXiv.2401.05289 (Access: Open )
https://doi.org/10.1090/proc/16936 (Access: Closed )
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