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20132024
most citedRevisit the fundamental plane of black-hole activity from sub-Eddington to quiescent state

31 citations

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Showing 2013Show all

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math.CO2013

Distance spectral radius of a tree with given diameter

Guanglong Yu, Shuguang Guo, Mingqing Zhai

For a connected graph, the distance spectral radius is the largest eigenvalue of its distance matrix. In this paper, of all trees with both given order and fixed diameter, the tree…

math.CO2013★ 2 cited

Spectral conditions for the existence of specified paths and cycles in graphs

Mingqing Zhai, Huiqiu Lin, Shicai Gong

Let be a graph with vertices and be the least eigenvalue of its adjacency matrix of . In this paper, we give sharp bounds on the least eigenvalue of graphs with…