English

Hamilton Cycles In Vertex-Transitive Graphs of Order 10p

Combinatorics 2025-07-08 v2

Abstract

After long-term efforts, the Hamilton path (cycle) problem for connected vertex-transitive graphs of order pqpq (where pp and qq are primes) was finally resolved in 2021, see [10]. Fifteen years ago, mathematicians began addressing this problem for graphs of order 2pq2pq. Among these studies, it was proved in 2012 (see [21]) that every connected vertex-transitive graph of order 10p10p (where p7p \neq 7 is a prime) contains a Hamilton path, with the exception of a family of graphs that was recently confirmed in [11]. In this paper, we achieve a further result: every connected vertex-transitive graph of order 10p10p (where pp is a prime) contains a Hamilton cycle, except for the truncation of the Petersen graph.

Keywords

Cite

@article{arxiv.2506.19888,
  title  = {Hamilton Cycles In Vertex-Transitive Graphs of Order 10p},
  author = {Huye Chen and Jingjian Li and Hao Yu},
  journal= {arXiv preprint arXiv:2506.19888},
  year   = {2025}
}