Constructing cospectral graphs via regular rational orthogonal matrices with level two

Lihuan Mao; Wei Wang; Fenjin Liu; Lihong Qiu

doi:10.1016/j.disc.2022.113156

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Constructing cospectral graphs via regular rational orthogonal matrices with level two

Lihuan Mao Wei Wang Fenjin Liu Lihong Qiu

Year: 2022 Journal: Discrete Mathematics Vol: 346 (1)Pages: 113156-113156 Publisher: Elsevier BV

DOI: 10.1016/j.disc.2022.113156

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Keywords:

Mathematics Combinatorics Adjacency matrix Indecomposable module Two-graph Discrete mathematics Matrix (chemical analysis) Simple (philosophy) Graph Line graph

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Graph theory and applications

Physical Sciences → Mathematics → Geometry and Topology

graph theory and CDMA systems

Physical Sciences → Engineering → Electrical and Electronic Engineering

Graph Labeling and Dimension Problems

Physical Sciences → Computer Science → Computational Theory and Mathematics

Constructing cospectral graphs via regular rational orthogonal matrices with level two

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