Bartholdi zeta functions of graph coverings
Bartholdi zeta functions of graph coverings
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DOI:
10.1016/s0095-8956(03)00043-1
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发表时间:
2003-09
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影响因子:
--
通讯作者:
H. Mizuno;I. Sato
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文献类型:
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作者:
H. Mizuno;I. Sato
We give a decomposition formula for the Bartholdi zeta function of a regular covering of a graph G. Furthermore, we define an L-function of G, and give a determinant expression of it. As a corollary, we obtain a decomposition formula for the Bartholdi zeta function of a regular covering of G by L-functions of G. Also, we present another proof of the determinant expression of the L-function of G.