English

Edge-transitive graphs of small order and the answer to a 1967 question by Folkman

Combinatorics 2018-08-17 v1 Group Theory

Abstract

In this paper, we introduce a method for finding all edge-transitive graphs of small order, using faithful representations of transitive permutation groups of small degree, and we explain how we used this method to find all edge-transitive graphs of order up to 4747, and all bipartite edge-transitive graphs of order up to 6363. We also give an answer to a 1967 question of Folkman about semi-symmetric graphs of large valency; in fact we show that for semi-symmetric graphs of order 2n2n and valency dd, the ratio d/nd/n can be arbitrarily close to 11.

Keywords

Cite

@article{arxiv.1808.05319,
  title  = {Edge-transitive graphs of small order and the answer to a 1967 question by Folkman},
  author = {Marston Conder and Gabriel Verret},
  journal= {arXiv preprint arXiv:1808.05319},
  year   = {2018}
}