English

A note on non-regular Bonnet-Myers Sharp Graphs

Combinatorics 2024-05-09 v1

Abstract

Self-centred regular graphs which are Ollivier-Ricci Bonnet-Myers sharp have been completely classified. When the conditions of self-centeredness and regularity are removed it is an open problem on what the classification is. We present a complete classification of Bonnet-Myers sharp graphs with a diameter 2 and show that there exists Bonnet-Myers sharp graphs of diameter 3, 4 and 6 that belong to a family of graphs called symmetrical antitees.

Cite

@article{arxiv.2405.04703,
  title  = {A note on non-regular Bonnet-Myers Sharp Graphs},
  author = {David Cushing and Adam J. Stone},
  journal= {arXiv preprint arXiv:2405.04703},
  year   = {2024}
}
R2 v1 2026-06-28T16:20:10.474Z