Geodesic
Strongly regular edge-transitive graphs
Ars Mathematica Contemporanea, Tome 2 (2009) no. 2, pp. 137-155.

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In this paper, we examine the structure of vertex- and edge-transitive strongly regular graphs, using normal quotient reduction. We show that the irreducible graphs in this family have quasiprimitive automorphism groups, and prove (using the Classification of Finite Simple Groups) that no graph in this family has a holomorphic simple automorphism group. We also find some constraints on the parameters of the graphs in this family that reduce to complete graphs.
DOI : 10.26493/1855-3974.109.97f
Keywords: strongly regular graphs, vertex-transitive graphs, edge- transitive graphs, normal quotient reduction, automorphism group 
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Joy Morris; Cheryl E. Praeger; Pablo Spiga. Strongly regular edge-transitive graphs. Ars Mathematica Contemporanea, Tome 2 (2009) no. 2, pp. 137-155. doi : 10.26493/1855-3974.109.97f. http://geodesic.mathdoc.fr/articles/10.26493/1855-3974.109.97f/

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