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ON THE GENERATING GRAPH OF A SIMPLE GROUP

Published online by Cambridge University Press:  26 September 2016

ANDREA LUCCHINI
Affiliation:
Dipartimento di Matematica, Università degli studi di Padova, Via Trieste 63, 35121 Padova, Italy email lucchini@math.unipd.it
ATTILA MARÓTI
Affiliation:
MTA Alfréd Rényi Institute of Mathematics, Reáltanoda utca 13–15, H-1053, Budapest, Hungary email maroti.attila@renyi.mta.hu
COLVA M. RONEY-DOUGAL
Affiliation:
Mathematical Institute, University of St Andrews, St Andrews, Fife KY16 9SS, UK email colva.roney-dougal@st-andrews.ac.uk

Abstract

The generating graph $\unicode[STIX]{x1D6E4}(H)$ of a finite group $H$ is the graph defined on the elements of $H$ , with an edge between two vertices if and only if they generate $H$ . We show that if $H$ is a sufficiently large simple group with $\unicode[STIX]{x1D6E4}(G)\cong \unicode[STIX]{x1D6E4}(H)$ for a finite group $G$ , then $G\cong H$ . We also prove that the generating graph of a symmetric group determines the group.

Type
Research Article
Copyright
© 2016 Australian Mathematical Publishing Association Inc. 

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Footnotes

The authors were supported by Università di Padova (Progetto di Ricerca di Ateneo: Invariable generation of groups). The second author was also supported by an Alexander von Humboldt Fellowship for Experienced Researchers, by OTKA grants K84233 and K115799, and by the MTA Rényi Lendület Groups and Graphs Research Group.

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