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math.CO2019
Least -eigenvalues of nonbipartite 2-connected graphs
Guanglong Yu, by Lin Sun, Chao Yan +2
Among all simple nonbipartite 2-connected graphs and among all nonbipartite -graphs, the minimum least -eigenvalues are completely determined, respectively.
math.CO2019
On the spectral radii of the unicyclic hypergraphs with fixed matching number
Guanglong Yu, Chao Yan, Yarong Wu +1
We determine the unique hypergraphs with maximum spectral radius among all connected -uniform () unicyclic hypergraphs with matching number at least , and among all…