The spectral radius of graphs with no K2,t minor
The spectral radius of graphs with no K2,t minor
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DOI:
10.1016/j.laa.2017.06.014
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发表时间:
2017-03
影响因子:
1.1
通讯作者:
V. Nikiforov
中科院分区:
文献类型:
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作者:
V. Nikiforov
Let t≥ 3 and G be a graph of order n, with no K 2, t minor. If n> 400 t 6, then the spectral radius μ (G) satisfies μ (G)≤ t− 1 2+ n+ t 2− 2 t− 3 4, with equality if and only if n≡ 1 (mod t) and G= K 1∨⌊ n/t⌋ K t. For t= 3 the maximum μ (G) is found exactly for any n> 40000.