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Isolated involutions in finite groups

About this Title

Rebecca Waldecker, Martin-Luther-Universität Halle-Wittenberg, Institut für Mathematik, Theodor-Lieser-Straße 5, 06120 Halle (Saale), Germany

Publication: Memoirs of the American Mathematical Society
Publication Year: 2013; Volume 226, Number 1061
ISBNs: 978-0-8218-8803-2 (print); 978-1-4704-1061-2 (online)
DOI: https://doi.org/10.1090/S0065-9266-2013-00684-3
Published electronically: March 15, 2013
Keywords: Finite group, Z*-Theorem, isolated involution
MSC: Primary 20E25, 20E34

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Table of Contents

Chapters

  • 1. Introduction
  • 2. Preliminaries
  • 3. Isolated Involutions
  • 4. A Minimal Counter-Example to Glauberman’s Z*-Theorem
  • 5. Balance and Signalizer Functors
  • 6. Preparatory Results for the Local Analysis
  • 7. Maximal Subgroups Containing $C$
  • 8. The $2$-rank of $O_{2’,2}(C)$
  • 9. Components of $\bar {C}$ and the Soluble Z*-Theorem
  • 10. Unbalanced Components
  • 11. The $2$-Rank of $G$
  • 12. The F*-Structure Theorem
  • 13. More Involutions
  • 14. The Endgame
  • 15. The Final Contradiction and the Z*-Theorem for $\mathcal {K}_2$-Groups

Abstract

This text provides a new proof of Glauberman’s Z*-Theorem under the additional hypothesis that the simple groups involved in the centraliser of an isolated involution are known simple groups.

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