English

A spectral bound for vertex-transitive graphs

Combinatorics 2022-02-09 v1

Abstract

For any finite, undirected, non-bipartite, vertex-transitive graph, we establish an explicit lower bound for the smallest eigenvalue of its normalised adjacency operator, which depends on the graph only through its degree and its isoperimetric constant.

Keywords

Cite

@article{arxiv.2104.09894,
  title  = {A spectral bound for vertex-transitive graphs},
  author = {Arindam Biswas and Jyoti Prakash Saha},
  journal= {arXiv preprint arXiv:2104.09894},
  year   = {2022}
}
R2 v1 2026-06-24T01:21:50.984Z