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Solvable and nonsolvable finite groups of the same order type

Paweł Piwek

Vol. 19 (2025), No. 8, 1663–1670
Abstract

We construct two groups of size 2365 3105 7104: a solvable group G and a nonsolvable group H such that for every integer n the groups have the same number of elements of order n. This answers a question posed in 1987 by John G. Thompson.

Keywords
Thompson's problem, order type
Mathematical Subject Classification
Primary: 20D10
Milestones
Received: 2 April 2024
Revised: 30 June 2024
Accepted: 3 September 2024
Published: 12 June 2025
Authors
Paweł Piwek
Mathematical Institute
University of Oxford
Oxford
United Kingdom

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