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Finite 2-Geodesic Transitive Abelian Cayley Graphs

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Abstract

In this paper, we first give a classification of the family of 2-geodesic transitive abelian Cayley graphs. Let \(\Gamma \) be such a graph which is not 2-arc transitive. It is shown that one of the following holds: (1) \(\Gamma \cong \mathrm{K}_{m[b]}\) for some \(m\ge 3\) and \(b\ge 2\); (2) \(\Gamma \) is a normal Cayley graph of an elementary abelian group; (3) \(\Gamma \) is a cover of Cayley graph \(\Gamma _K\) of an abelian group T / K, where either \(\Gamma _K\) is complete arc transitive or \(\Gamma _K\) is 2-geodesic transitive of girth 3, and A / K acts primitively on \(V(\Gamma _K)\) of type Affine or Product Action. Second, we completely determine the family of 2-geodesic transitive circulants.

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Acknowledgments

The authors are grateful to the anonymous referees for valuable suggestions and comments.

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Correspondence to Wei Jin.

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Supported by the National Natural Science Foundation of China (Grant Nos. 11271208, 11301230), NSF of Jiangxi (20142BAB211008, 20151BAB201001) and Jiangxi Education Department Grant (GJJ14351).

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Jin, W., Liu, W.J. & Wang, C.Q. Finite 2-Geodesic Transitive Abelian Cayley Graphs. Graphs and Combinatorics 32, 713–720 (2016). https://doi.org/10.1007/s00373-015-1601-y

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  • DOI: https://doi.org/10.1007/s00373-015-1601-y

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