Coulson-type integral formulas for the general Laplacian-energy-like invariant of graphs

来源 :The 12th Meeting of the International Academy of Mathematica | 被引量 : 0次 | 上传用户：h8x8x8

【摘要】

：

　　Let G be a graph of order n and λ1,λ2,…,λn the eigenvalues of G.The energy of G is defined as(E(G)=Σn k=1 |λk|.A well-known result on the energy of gr

【作者】

：

Lu Qiao

【机构】

：

NorthwesternPolytechnicalUniversity,China

【出处】

：

The 12th Meeting of the International Academy of Mathematica

【发表日期】

：

2016年7期

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论文部分内容阅读

　　Let G be a graph of order n and λ1,λ2,…,λn the eigenvalues of G.The energy of G is defined as(E(G)=Σn k=1 |λk|.A well-known result on the energy of graphs is the Coulson integral formula which gives a relationship between the energy and the characteristic polynomial of graphs.

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Coulson-type integral formulas for the general Laplacian-energy-like invariant of graphs

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