English

Graphs with three eigenvalues and second largest eigenvalue at most 1

Combinatorics 2019-01-31 v1

Abstract

We classify the connected graphs with precisely three distinct eigenvalues and second largest eigenvalue at most 1.

Keywords

Cite

@article{arxiv.1506.02435,
  title  = {Graphs with three eigenvalues and second largest eigenvalue at most 1},
  author = {Xi-Ming Cheng and Gary R. W. Greaves and Jack H. Koolen},
  journal= {arXiv preprint arXiv:1506.02435},
  year   = {2019}
}

Comments

20 pages

R2 v1 2026-06-22T09:49:05.738Z