Zeta functions from graphs

Zeta functions from graphs
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图表中的 Zeta 函数

DOI:
10.1016/j.akcej.2017.09.007
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发表时间:
2018
期刊:
AKCE Int. J. Graphs Comb.
影响因子:
--
通讯作者:
S. Davis
S. Davis
中科院分区:
--
文献类型:
--
作者:
S. Davis

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本文从Ramanujan图的谱出发,导出了广义zeta函数的非平凡极点的位置,并对不规则图建立了界。证明了由一组特定特征值给出的对角矩阵到图的邻接矩阵的相似变换的存在性,并给出了一组特征值由Ihara zeta函数的极点的有限子集近似确定的有限图.
The location of the nontrivial poles of a generalized zeta function is derived from the spectrum of Ramanujan graphs and bounds are established for irregular graphs. The existence of a similarity transformation of the diagonal matrix given by a specified set of eigenvalues to an adjacency matrix of a graph is proven, and the method yields a set of finite graphs with eigenvalues determined approximately by a finite subset of the poles of the Ihara zeta function.