Abstract
We give a proof of a formula for the Bartholdi zeta function of a digraph by the method of Stark and Terras (Adv. Math. 121:124–165, 1996).
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We would like to thank the referee for many valuable comments and many helpful suggestions.
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I. Sato: Supported by Grant-in-Aid for Science Research (C).
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Sato, I. A New Proof of a Formula for the Bartholdi Zeta Function of a Digraph. Graphs and Combinatorics 32, 1571–1583 (2016). https://doi.org/10.1007/s00373-015-1668-5
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DOI: https://doi.org/10.1007/s00373-015-1668-5