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Graphs with nullity \(2c(G)+p(G)-1\) - MaRDI portal

Graphs with nullity \(2c(G)+p(G)-1\) (Q2113337)

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scientific article; zbMATH DE number 7488417
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Graphs with nullity \(2c(G)+p(G)-1\)
scientific article; zbMATH DE number 7488417

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    Graphs with nullity \(2c(G)+p(G)-1\) (English)
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    14 March 2022
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    In this paper, the authors solved a remaining problem in [\textit{X. Ma} et al., Discrete Appl. Math. 215, 171--176 (2016; Zbl 1346.05144)], that is, they characterized all connected graphs \(G\) of nullity \(2c(G)+p(G)-1\) with \(p(G)>0\). The method used here is interesting.
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    nullity
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    eigenvalue multiplicity
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