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Title: Bounds for the spectral radius and energy of extended adjacency matrix of graphs
Authors: Wang Z.
Mao Y.
Furtula, Boris
Wang X.
Issue Date: 2019
Abstract: © 2019, © 2019 Informa UK Limited, trading as Taylor & Francis Group. An extend adjacency matrix of a graph (Aex) was introduced decades ago as a precursor for developing a few quite useful molecular topological descriptors. The spectral radius (η1) of the extended adjacency matrix and the extended energy of a graph (εex) have been successfully utilized in QSPR/QSAR investigations. Here, the η1 and εex have been further mathematically analyzed. Several sharp upper bounds for the εex are obtained. In addition, the Nordhaus–Gaddum-type results for the η1 and εex are presented.
Type: article
DOI: 10.1080/03081087.2019.1641464
ISSN: 0308-1087
SCOPUS: 2-s2.0-85068763292
Appears in Collections:Faculty of Science, Kragujevac

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