1.

Record Nr.

UNINA9910819130903321

Autore

Broto Carles

Titolo

Automorphisms of fusion systems of finite simple groups of lie type / / Carles Broto, Jesper M. Møller, Bob Oliver

Pubbl/distr/stampa

Providence, Rhode Island : , : American Mathematical Society, , [2019]

©2019

ISBN

1-4704-5507-2

Descrizione fisica

1 online resource (vi, 163 pages) : illustrations

Collana

Memoirs of the American Mathematical Society ; ; Volume 1267

Classificazione

20D0620D2020D4520E4255R35

Disciplina

512.2

Soggetti

Finite simple groups

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

"Automorphisms of fusion systems of sporadic simple groups"--Title page.

Nota di bibliografia

Includes bibliographical references.

Sommario/riassunto

"For a finite group G of Lie type and a prime p, we 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[caret]p in terms of Out(G)."--