Ramanujan unitary one-matching bi-Cayley graphs over finite commutative rings

Jinxing Yang, Ligong Wang

Research output: Contribution to journalArticlepeer-review

Abstract

Let (Formula presented.) denote a unitary one-matching bi-Cayley graph over a finite commutative ring R. In this paper, we give a necessary and sufficient condition for (Formula presented.) (respectively, the complement of (Formula presented.) and the line graph of (Formula presented.)) to be Ramanujan.

Original languageEnglish
Pages (from-to)2037-2053
Number of pages17
JournalLinear and Multilinear Algebra
Volume72
Issue number12
DOIs
StatePublished - 2024

Keywords

  • 05C25
  • 05C50
  • Ramanujan
  • spectrum
  • Unitary one-matching bi-Cayley graph

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