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Published in: Journal of Applied Mathematics and Computing 1-2/2016

01-06-2016 | Original Research

The Laplacian and signless Laplacian spectrum of semi-Cayley graphs over abelian groups

Authors: Xing Gao, Huazhong Lü, Yifei Hao

Published in: Journal of Applied Mathematics and Computing | Issue 1-2/2016

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Abstract

In this paper, a formula of the Laplacian and signless Laplacian spectrum of semi-Cayley graphs over abelian groups is given. As applications of our main result, special formulae of Laplacian and signless Laplacian spectrum are also given for two classes of semi-Cayley graphs (one matching bi-Cayley graphs and the join of two Cayley graphs over isomorphic abelian groups). In particular, a method to construct Laplacian and signless Laplacian integral semi-Cayley graphs is obtained.

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Metadata
Title
The Laplacian and signless Laplacian spectrum of semi-Cayley graphs over abelian groups
Authors
Xing Gao
Huazhong Lü
Yifei Hao
Publication date
01-06-2016
Publisher
Springer Berlin Heidelberg
Published in
Journal of Applied Mathematics and Computing / Issue 1-2/2016
Print ISSN: 1598-5865
Electronic ISSN: 1865-2085
DOI
https://doi.org/10.1007/s12190-015-0911-9

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