The main result of this paper is that vertex-transitive graphs and digraphs of order p 4 are Hamiltonian, where p is a prime number. 1998 Academic Press 1. INTRODUCTION Witte [7] proved that Cayley digraphs of finite p-groups are Hamiltonian. In [2], Marus$ ic$ showed that all vertex-transitive digr
A class of self-complementary vertex-transitive digraphs
β Scribed by Gek-Ling Chia; Chong-Keang Lim
- Publisher
- John Wiley and Sons
- Year
- 1986
- Tongue
- English
- Weight
- 312 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0364-9024
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β¦ Synopsis
We characterize the class of self-complementary vertex-transitive digraphs on a prime number p of vertices. Using this, we enumerate (i) self-complementary strongly vertex-transitive digraphs on p vertices, (ii) self-complementary vertex-transitive digraphs on p vertices, (iii) selfcomplementary vertex-transitive graphs on p vertices. Finally it is shown that every self-complementary vertex-transitive digraph on p vertices is either a tournament or a graph.
π SIMILAR VOLUMES
A d-regular graph is said to be superconnected if any disconnecting subset with cardinality at most d is formed by the neighbors of some vertex. A superconnected graph that remains connected after the failure of a vertex and its neighbors will be called vosperian. Let be a vertex-transitive graph of
## Abstract A method is described of constructing a class of selfβcomplementary graphs, that includes a selfβcomplementary graph, containing no __K__~5~, with 41 vertices and a selfβcomplementary graph, containing no __K__~7~, with 113 vertices. The latter construction gives the improved Ramsey num
We study the class of directed graphs that have indegree = outdegree = 2 a t every vertex. These digraphs can be decomposed uniquely into "alternating cycles"; w e use this decomposition to present efficient techniques for counting and generating them. The number (up to isomorphism) of these digraph
This paper completes the determination of all integers of the form pqr (where p, q, and r are distinct primes) for which there exists a vertex-transitive graph on pqr vertices which is not a Cayley graph.