For a large class of finite Cayley graphs we construct covering graphs whose automorphism groups coincide with the groups of lifted automorphisms. As an application we present new examples of 1Γ2-transitive and 1-regular graphs.
Automorphism group and diameter of a graph
β Scribed by P. Dankelmann; D. Erwin; S. Mukwembi; B. G. Rodrigues; E. Mwambene; G. Sabidussi
- Publisher
- John Wiley and Sons
- Year
- 2011
- Tongue
- English
- Weight
- 178 KB
- Volume
- 70
- Category
- Article
- ISSN
- 0364-9024
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β¦ Synopsis
Abstract
Given a connected graph Ξ of order n and diameter d, we establish a tight upper bound for the order of the automorphism group of Ξ as a function of n and d, and determine the graphs for which the bound is attained. Β© 2011 Wiley Periodicals, Inc. J Graph Theory.
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