Automorphisms of Fusion Systems of Finite Simple Groups of Lie Type

Released on by Carles Broto
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  • Automorphisms of Fusion Systems of Finite Simple Groups of Lie Type Book Detail

  • Author : Carles Broto
  • Release Date : 2020-02-13
  • Publisher : American Mathematical Soc.
  • Genre : Education
  • Pages : 115
  • ISBN 13 : 1470437724
  • File Size : 97,97 MB
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Automorphisms of Fusion Systems of Finite Simple Groups of Lie Type by Carles Broto PDF Summary

Book Description: For a finite group G of Lie type and a prime p, the authors compare the automorphism groups of the fusion and linking systems of G at p with the automorphism group of G itself. When p is the defining characteristic of G, they are all isomorphic, with a very short list of exceptions. When p is different from the defining characteristic, the situation is much more complex but can always be reduced to a case where the natural map from Out(G) to outer automorphisms of the fusion or linking system is split surjective. This work is motivated in part by questions involving extending the local structure of a group by a group of automorphisms, and in part by wanting to describe self homotopy equivalences of BG∧p in terms of Out(G).

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