A generalization of Fiedler's lemma and the spectra of H-join of graphs

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DC Field	Value	Language
dc.contributor.author	Murugan, S.P.	-
dc.date.accessioned	2023-08-25T11:49:21Z	-
dc.date.available	2023-08-25T11:49:21Z	-
dc.date.issued	2021	-
dc.identifier.citation	Linear Algebra and Its Applications, 625, 20–43.	en_US
dc.identifier.uri	https://doi.org/10.1016/j.laa.2021.04.015	-
dc.identifier.uri	http://hdl.handle.net/123456789/5178	-
dc.description	Only IISER Mohali authors are available in the record.	en_US
dc.description.abstract	A new generalization of Fiedler's lemma is obtained by introducing the concept of the main function of a matrix. As applications, the universal spectra of the H-join of any graphs (possibly non-regular) and the adjacency spectra of the H-generalized join constrained by (arbitrary) vertex subsets are obtained. The adjacency spectra of the generalized corona of graphs is deduced from the spectra of the H-join of graphs. Also, the construction of infinitely many pairs of non-regular universal cospectral graphs is provided.	en_US
dc.language.iso	en_US	en_US
dc.publisher	Eslevier	en_US
dc.subject	Graph operations	en_US
dc.subject	Graph eigenvalues	en_US
dc.subject	Universal adjacency matrix	en_US
dc.title	A generalization of Fiedler's lemma and the spectra of H-join of graphs	en_US
dc.type	Article	en_US
Appears in Collections:	Research Articles

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