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The Local Structure Theorem for Finite Groups with a Large $p$-Subgroup

About this Title

U. Meierfrankenfeld, Department of Mathematics, Michigan State University, East Lansing Michigan 48824, B. Stellmacher, Gneisenaustrasse 6, D24105 Kiel and G. Stroth, Martin-Luther-UniversitΓ€t Halle-Wittenberg, Institut fΓΌr Mathematik, D06099 Halle

Publication: Memoirs of the American Mathematical Society
Publication Year: 2016; Volume 242, Number 1147
ISBNs: 978-1-4704-1877-9 (print); 978-1-4704-2948-5 (online)
DOI: https://doi.org/10.1090/memo/1147
Published electronically: April 8, 2016
Previous Version:Original version posted April 8, 2016 with incorrect title
Keywords: Local characteristic $p$, large subgroup, finite simple groups
MSC: Primary 20D05

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Table of Contents

Chapters

  • Introduction
  • 1. Definitions and Preliminary Results
  • 2. The Case Subdivision and Preliminary Results
  • 3. The Orthogonal Groups
  • 4. The Symmetric Case
  • 5. The Short Asymmetric Case
  • 6. The Tall $char\, p$-Short Asymmetric Case
  • 7. The $char\, p$-Tall $Q$-Short Asymmetric Case
  • 8. The $Q$-Tall Asymmetric Case I
  • 9. The $Q$-tall Asymmetric Case II
  • 10. Proof of the Local Structure Theorem
  • A. Module theoretic Definitions and Results
  • B. Classical Spaces and Classical Groups
  • C. FF-Module Theorems and Related Results
  • D. The Fitting Submodule
  • E. The Amalgam Method
  • Bibliography

Abstract

Let $p$ be a prime, $G$ a finite $\mathcal {K}_p$-group $S$ a Sylow $p$-subgroup of $G$ and $Q$ a large subgroup of $G$ in $S$ (i.e., $C_G(Q) \leq Q$ and $N_G(U) \leq N_G(Q)$ for $1 \ne U \leq C_G(Q)$). Let $L$ be any subgroup of $G$ with $S\leq L$, $O_p(L)\neq 1$ and $Q\ntrianglelefteq L$. In this paper we determine the action of $L$ on the largest elementary abelian normal $p$-reduced $p$-subgroup $Y_L$ of $L$.

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