Journal of the Australian Mathematical Society (2008), 85:305-322 Cambridge University Press
Copyright © Australian Mathematical Society 2009
doi:10.1017/S1446788708000839
Research Article
INVOLUTION GRAPHS WHERE THE PRODUCT OF TWO ADJACENT VERTICES HAS ORDER THREE
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Abstract
An S3-involution graph for a group G is a graph with vertex set a union of conjugacy classes of involutions of G such that two involutions are adjacent if they generate an S3-subgroup in a particular set of conjugacy classes. We investigate such graphs in general and also for the case where G=PSL(2,q).
(Received November 27 2007)
(Accepted May 20 2008)
2000 Mathematics subject classification20B25; 05C25
Keywords and phrasesgraphs; groups; involutions
Correspondence:
c1 For correspondence; e-mail: giudici@maths.uwa.edu.au
Footnotes
Dedicated to Cheryl Praeger for her sixtieth birthday