A generalized Bartholdi zeta function for a regular covering of a bipartite graph

Autor: Iwao Sato, Seiken Saito
Rok vydání: 2013
Předmět:
Zdroj: Linear Algebra and its Applications. 438(3):1025-1056
ISSN: 0024-3795
DOI: 10.1016/j.laa.2012.09.007
Popis: Recently, Sato [13] introduced a generalized Bartholdi zeta function of a bipartite graph, and presented three determinant expressions of it. At first, we present a decomposition formula for the generalized Bartholdi zeta function of a regular covering of a bipartite graph G. Furthermore, we introduce a generalized Bartholdi L-function of G, and give three determinant expressions of it. As applications, we present three types of decomposition formulas for the generalized Bartholdi zeta function of a regular covering of G by its generalized Bartholdi L-functions.
Databáze: OpenAIRE