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Distance-transitive dihedrants

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Abstract

The main result of this article is a classification of distance-transitive Cayley graphs on dihedral groups. We show that a Cayley graph X on a dihedral group is distance-transitive if and only if X is isomorphic to one of the following graphs: the complete graph K 2n ; a complete multipartite graph K t×m with t anticliques of size m, where t m is even; the complete bipartite graph without 1-factor K n,n  − nK 2; the cycle C 2n ; the incidence or the non-incidence graph of the projective geometry PG d-1(d,q), d ≥ 2; the incidence or the non-incidence graph of a symmetric design on 11 vertices.

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Correspondence to Štefko Miklavič.

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Communicated by C. E. Praeger.

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Miklavič, Š., Potočnik, P. Distance-transitive dihedrants. Des Codes Crypt 41, 185–193 (2006). https://doi.org/10.1007/s10623-006-9008-7

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  • DOI: https://doi.org/10.1007/s10623-006-9008-7

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