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We consider the second weighted Bartholdi zeta function of a graph $G$, and present weighted versions for the result of Li and Hou's on the partial derivatives of the determinant part in the determinant expression of the Bartholdi zeta…

组合数学 · 数学 2019-05-31 Matsutani Shigeki , Misuhashi Hideo , Morita Hideaki , Sato Iwao

It is shown by Mizuno and Sato that the Bartholdi zeta function of a covering graph is decomposed as a product of Bartholdi zeta functions of a base graph that are associated with representations. In this paper, we extend their result to…

组合数学 · 数学 2025-12-02 Kosei Watanabe

We introduce a generalized Bartholdi zeta function for simple graphs with bounded degree. This zeta function is a generalization of both the Bartholdi zeta function which was introduced by L.~Bartholdi and the Ihara zeta function which was…

组合数学 · 数学 2018-01-18 Taichi Kousaka

In this paper, we investigate the Bartholdi zeta function on a connected simple digraph with $n_V$ vertices and $n_E$ edges. We derive a functional equation for the Bartholdi zeta function $\zeta_G(q,u)$ on a regular graph $G$ with respect…

组合数学 · 数学 2024-08-12 So Matsuura , Kazutoshi Ohta

We introduce a new method for constructing isospectral quantum graphs that is based on transplanting derivatives of eigenfunctions. We also present simple digraphs with the same reversing zeta function, which generalizes the Bartholdi zeta…

谱理论 · 数学 2015-09-14 Peter Doyle , Peter Herbrich

We put forward the concept of measure graphs. These are (possibly uncountable) graphs equipped with an action of a groupoid and a measure invariant under this action. Examples include finite graphs, periodic graphs, graphings and…

度量几何 · 数学 2018-01-10 Daniel Lenz , Felix Pogorzelski , Marcel Schmidt

We discuss a method of calculating the zeta function of subshifts which have a presentation by a finite directed graph labeled by elements of the associated inverse semigroup. This class of subshifts is introduced as a class of property A…

动力系统 · 数学 2010-01-12 Kokoro Inoue

Let $\pi=\{V_1,\dots,V_r\}$ be an equitable partition of the vertex set of a directed graph (digraph) $X$. It is well known that the characteristic polynomial $\phi(X/\pi,x)$ of a quotient graph $X/\pi$ divides that of $X$, but the…

组合数学 · 数学 2019-12-24 Osamu Kada

The complexity of a graph can be obtained as a derivative of a variation of the zeta function or a partial derivative of its generalized characteristic polynomial evaluated at a point [\textit{J. Combin. Theory Ser. B}, 74 (1998), pp.…

组合数学 · 数学 2010-11-01 Dongseok Kim , Young Soo Kwon , Jaeun Lee

We introduce new zeta functions related to an endomorphism $\phi$ of a discrete group $\Gamma$. They are of two types: counting numbers of fixed ($\rho\sim \rho\circ\phi^n$) irreducible representations for iterations of $\phi$ from an…

群论 · 数学 2018-04-11 Alexander Fel'shtyn , Evgenij Troitsky , Malwina Ziętek

In this article we construct zeta functions of quantum graphs using a contour integral technique based on the argument principle. We start by considering the special case of the star graph with Neumann matching conditions at the center of…

数学物理 · 物理学 2015-05-14 J. M. Harrison , K. Kirsten

Conjecturally, almost all graphs are determined by their spectra. This problem has also been studied for variants such as the spectra of the Laplacian and signless Laplacian. Here we consider the problem of determining graphs with Ihara and…

组合数学 · 数学 2015-09-02 Christina Durfee , Kimball Martin

We write the spectral zeta function of the Laplace operator on an equilateral metric graph in terms of the spectral zeta function of the normalized Laplace operator on the corresponding discrete graph. To do this, we apply a relation…

数学物理 · 物理学 2017-11-02 Jonathan Harrison , Tracy Weyand

In this paper, we find computational formulae for generalized characteristic polynomials of graph bundles. We show that the number of spanning trees in a graph is the partial derivative (at (0,1)) of the generalized characteristic…

组合数学 · 数学 2008-07-03 Dongseok Kim , Hye Kyung Kim , Jaeun Lee

Given a holomorphic iterated function scheme with a finite symmetry group $G$, we show that the associated dynamical zeta function factorizes into symmetry-reduced analytic zeta functions that are parametrized by the unitary irreducible…

谱理论 · 数学 2016-02-15 David Borthwick , Tobias Weich

Stark and Terras introduced the edge zeta function of a finite graph in 1996. The edge zeta function is the reciprocal of a polynomial in twice as many variables as edges in the graph and can be computed in polynomial time. We look at graph…

组合数学 · 数学 2007-08-15 Christopher K. Storm

In this paper, we explore the properties of zeta functions associated with infinite graphs of groups that arise as quotients of cuspidal tree-lattices, including all non-uniform arithmetic quotients of the tree of rank one Lie groups over…

群论 · 数学 2023-07-13 Soonki Hong , Sanghoon Kwon

This paper generalizes Bass' work on zeta functions for uniform tree lattices. Using the theory of von Neumann algebras, machinery is developed to define the zeta function of a discrete group of automorphisms of a bounded degree tree. The…

群论 · 数学 2007-05-23 Bryan Clair , Shahriar Mokhtari-Sharghi

We introduce a generalized Grover matrix of a graph and present an explicit formula for its characteristic polynomial. As a corollary, we give the spectra for the generalized Grover matrix of a regular graph. Next, we define a zeta function…

组合数学 · 数学 2022-01-12 Takashi Komatsu , Norio Konno , Iwao Sato , Shunya Tamura

In this paper, by introducing a new operation in the vector space of analytic functions, the author presents a method for derivating the well-known formulas: $\zeta(1-k)=-\frac{B_k}{k}$ and $\zeta(1-n,a)=-\frac{B_n(a)}{n}$ , where $\zeta$,…

数论 · 数学 2019-03-13 Chenfeng He
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