English

Fat Hoffman graphs with smallest eigenvalue greater than -3

Combinatorics 2014-08-12 v4 Discrete Mathematics

Abstract

In this paper, we give a combinatorial characterization of the special graphs of fat Hoffman graphs containing K1,2\mathfrak{K}_{1,2} with smallest eigenvalue greater than -3, where K1,2\mathfrak{K}_{1,2} is the Hoffman graph having one slim vertex and two fat vertices.

Cite

@article{arxiv.1211.3929,
  title  = {Fat Hoffman graphs with smallest eigenvalue greater than -3},
  author = {Akihiro Munemasa and Yoshio Sano and Tetsuji Taniguchi},
  journal= {arXiv preprint arXiv:1211.3929},
  year   = {2014}
}

Comments

21+5 pages

R2 v1 2026-06-21T22:39:39.295Z