Some results on Laplacian spectral radius of graphs with cut vertices |
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| Authors: | Xiaoling Zhang Heping Zhang |
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| Affiliation: | a School of Mathematics and Information Science, Yantai University, Yantai, Shandong 264005, PR Chinab School of Mathematics and Statistics, Lanzhou University, Lanzhou, Gansu 730000, PR China |
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| Abstract: | In this paper, we give some results on Laplacian spectral radius of graphs with cut vertices, and as their applications, we also determine the unique graph with the largest Laplacian spectral radius among all unicyclic graphs with n vertices and diameter d, 3?d?n−3. |
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| Keywords: | Laplacian spectral radius Unicyclic graph Diameter |
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