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In various contexts, the zeta function of an object splits into a product of $L$-functions. We categorify this product formula for quadratic covers of objects in the following contexts: quadratic extensions of number fields, ramified double…

Number Theory · Mathematics 2025-02-13 Jon Aycock , Andrew Kobin

We initiate the study of spectral zeta functions $\zeta_{X}$ for finite and infinite graphs $X$, instead of the Ihara zeta function, with a perspective towards zeta functions from number theory and connections to hypergeometric functions.…

Number Theory · Mathematics 2015-10-06 Fabien Friedli , Anders Karlsson

We introduce a new algorithm to compute the zeta function of a curve over a finite field. This method extends previous work of ours to all curves for which a good lift to characteristic zero is known. We develop all the necessary bounds,…

Number Theory · Mathematics 2016-09-22 Jan Tuitman

This is the first of two papers in which we introduce and study two bivariate zeta functions associated to unipotent group schemes over rings of integers of number fields. One of these zeta functions encodes the numbers of isomorphism…

Group Theory · Mathematics 2020-07-22 Paula Macedo Lins de Araujo

We consider the generalized weighted zeta function for a finite digraph, and show that it has the Ihara expression, a determinant expression of graph zeta functions, with a certain specified definition for inverse arcs. A finite digraph in…

Combinatorics · Mathematics 2023-04-04 Ayaka Ishikawa , Hideaki Morita

In this paper, we present formulas for the edge zeta function and the second weighted zeta function with respect to the group matrix of a finite abelian group $\Gamma $. Furthermore, we give another proof of Dedekind Theorem for the group…

Combinatorics · Mathematics 2025-03-24 Tsuyoshi Miezaki , Iwao Sato

We give an explicit formula of the coefficients of the Zeta-Function's L-polynomial for algebraic function fields over finite constant fields. Thus, we deduce an expression of the class number of algebraic function fields defined over…

Algebraic Geometry · Mathematics 2026-02-26 Mahdi Mohamed Koutchoukali

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…

Mathematical Physics · Physics 2015-05-14 J. M. Harrison , K. Kirsten

We define a new weighted zeta function for a finite digraph and obtain its determinant expression called the Ihara expression. The graph zeta function is a generalization of the weighted graph zeta function introduced in previous research.…

Combinatorics · Mathematics 2022-09-27 Ayaka Ishikawa

We study some infinite products of absolute zeta functions. Especially, we consider the convergence and the rationality of them.

Number Theory · Mathematics 2021-06-18 Nobushige Kurokawa , Hidekazu Tanaka

In this manuscript, we give effective methods for computing the zeta function of maximal orders on surfaces.

Number Theory · Mathematics 2025-07-22 Daniel Chan , Sean B. Lynch

In this paper we study spectral zeta functions associated to finite and infinite graphs. First we establish a meromorphic continuation of these functions under some general conditions. Then we study special values in the case of standard…

Spectral Theory · Mathematics 2019-09-05 Jérémy Dubout

In this paper, we give an overview of the various general methods in computing the zeta function of an algebraic variety defined over a finite field, with an emphasis on computing the reduction modulo $p^m$ of the zeta function of a…

Number Theory · Mathematics 2007-05-23 Daqing Wan

We construct spectral zeta functions for the Dirac operator on metric graphs. We start with the case of a rose graph, a graph with a single vertex where every edge is a loop. The technique is then developed to cover any finite graph with…

Mathematical Physics · Physics 2016-10-13 J. M. Harrison , T. Weyand , K. Kirsten

We define the zeta function of a finite category. And we propose a conjecture which states the relationship between the Euler characteristic of finite categories and the zeta function of finite categories. This conjecture is verified when…

Category Theory · Mathematics 2012-05-10 Kazunori Noguchi

We express the Riemann zeta function $\zeta\left(s\right)$ of argument $s=\sigma+i\tau$ with imaginary part $\tau$ in terms of three absolutely convergent series. The resulting simple algorithm allows to compute, to arbitrary precision,…

Number Theory · Mathematics 2017-06-09 Kurt Fischer

We introduce new non-abelian zeta functions for curves defined over finite fields. There are two types, i.e., pure non-abelian zetas defined using semi-stable bundles, and group zetas defined for pairs consisting of (reductive group,…

Algebraic Geometry · Mathematics 2012-02-21 Lin Weng

We show that it is possible to approximate the zeta-function of a curve over a finite field by meromorphic functions which satisfy the same functional equation and moreover satisfy (respectively do not satisfy) the analogue of the Riemann…

Complex Variables · Mathematics 2010-08-04 P. M. Gauthier , N. Tarkhanov

In this paper, we define edge zeta functions for spherical buildings associated with finite general linear groups. We derive elegant formulas for these zeta functions and reveal patterns of eigenvalues of these buildings, by introducing and…

Combinatorics · Mathematics 2025-10-15 Jianhao Shen

We consider the alternating zeta function and the alternating $L$-function of a graph $G$, and express them by using the Ihara zeta function of $G$. Next, we define a generalized alternating zeta function of a graph, and express the…

Combinatorics · Mathematics 2023-02-21 Takashi Komatsu , Norio Konno , Iwao Sato