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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…

Metric Geometry · Mathematics 2018-01-10 Daniel Lenz , Felix Pogorzelski , Marcel Schmidt

We study the multifractal analysis for smooth dynamical systems in dimension one. It is characterized the Hausdorff dimension of the level set obtained from the Birkhoff averages of a continuous function by the local dimensions of…

Dynamical Systems · Mathematics 2008-03-12 Yong Moo Chung

This is an expository paper on the meromorphic continuation of zeta functions with Euler products (for example zeta functions of groups and height zeta functions) or without (for example the Goldbach zeta function). As an application we…

Number Theory · Mathematics 2010-01-13 Gautami Bhowmik

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…

Group Theory · Mathematics 2018-04-11 Alexander Fel'shtyn , Evgenij Troitsky , Malwina Ziętek

We define Dirichlet type series associated with homology length spectra of Riemannian, or Finsler, manifolds, or polyhedra, and investigate some of their analytical properties. As a consequence we obtain an inequality analogous to Gromov's…

Differential Geometry · Mathematics 2017-05-02 Ivan Babenko , Daniel Massart

A novel approach to zipper fractal interpolation theory for functions of several variables is proposed. We develop multivariate zipper fractal functions in a constructive manner. We then perturb a multivariate function to construct its…

Functional Analysis · Mathematics 2022-12-08 D. Kumar , A. K. B. Chand , P. R. Massopust

Partial zeta functions of algebraic varieties over finite fields generalize the classical zeta function by allowing each variable to be defined over a possibly different extension field of a fixed finite field. Due to this extra variation…

Number Theory · Mathematics 2022-10-27 Noah Bertram , Xiantao Deng , C. Douglas Haessig , Yan Li

Standard zeta function regularisation enforces a scale-independent prescription for spectral aggregation, effectively fixing the relative weight of spectral contributions. We relax this constraint by replacing the derivative at $s=0$ with a…

Mathematical Physics · Physics 2026-04-14 Keisuke Okamura

We study meromorphic extensions of distance and tube zeta functions, as well as of geometric zeta functions of fractal strings. The distance zeta function $\zeta_A(s):=\int_{A_\delta} d(x,A)^{s-N}\mathrm{d}x$, where $\delta>0$ is fixed and…

Mathematical Physics · Physics 2023-04-27 Michel L. Lapidus , Goran Radunović , Darko Žubrinić

We undertake a general study of multifractal phenomena for functions. We show that the existence of several kinds of multifractal functions can be easily deduced from an abstract statement, leading to new results. This general approach does…

Classical Analysis and ODEs · Mathematics 2016-10-05 Frédéric Bayart , Yanick Heurteaux

In this note, we study the dynamics and associated zeta functions of conformally compact manifolds with variable negative sectional curvatures. We begin with a discussion of a larger class of manifolds known as convex co-compact manifolds…

Differential Geometry · Mathematics 2020-12-11 Julie Rowlett , Pablo Suárez-Serrato , Samuel Tapie

This paper gives the pointwise H\"older (or multifractal) spectrum of continuous functions on the interval $[0,1]$ whose graph is the attractor of an iterated function system consisting of $r\geq 2$ affine maps on $\mathbb{R}^2$. These…

Classical Analysis and ODEs · Mathematics 2020-06-16 Pieter Allaart

We consider the multifractal analysis for Birkhoff averages of continuous potentials on a class of non-conformal repellers corresponding to the self-affine limit sets studied by Lalley and Gatzouras. A conditional variational principle is…

Dynamical Systems · Mathematics 2011-03-25 Henry WJ Reeve

Multifractal analysis studies level sets of asymptotically defined quantities in a topological dynamical system. We consider the topological pressure function on such level sets, relating it both to the pressure on the entire phase space…

Dynamical Systems · Mathematics 2013-01-14 Vaughn Climenhaga

We study self-similar measures in $\mathbb{R}$ satisfying the weak separation condition along with weak technical assumptions which are satisfied in all known examples. For such a measure $\mu$, we show that there is a finite set of concave…

Dynamical Systems · Mathematics 2021-04-20 Alex Rutar

In this paper we prove a multifractal formalism of Birkhoff averages for interval maps with countably many branches. Furthermore, we prove that under certain regularity assumptions on the potential the Birkhoff spectrum is real analytic.…

Dynamical Systems · Mathematics 2015-11-04 Godofredo Iommi , Thomas Jordan

We use a spectral theory perspective to reconsider properties of the Riemann zeta function. In particular, new integral representations are derived and used to present its value at odd positive integers.

Spectral Theory · Mathematics 2018-12-04 Mark S. Ashbaugh , Fritz Gesztesy , Lotfi Hermi , Klaus Kirsten , Lance Littlejohn , Hagop Tossounian

We achieve on self-affine Sierpinski carpets the multifractal analysis of the Birkhoff averages of potentials satisfying a Dini condition. Given such a potential, the corresponding Hausdorff spectrum cannot be deduced from that of the…

Dynamical Systems · Mathematics 2009-11-13 Julien Barral , Mounir Mensi

With the increasing importance of the Mittag-Leffler function in the physical applications, these days many researchers are studying various generalizations and extensions of the Mittag-Leffler function. In this paper efforts are made to…

Complex Variables · Mathematics 2021-07-20 Ritu Agarwal , Urvashi Purohit Sharma , Ravi P. Agarwal

We establish sharp bounds for simultaneous local rotation and H\"older-distortion of planar quasiconformal maps. In addition, we give sharp estimates for the corresponding joint quasiconformal multifractal spectrum, based on new estimates…

Complex Variables · Mathematics 2015-08-24 Kari Astala , Tadeusz Iwaniec , István Prause , Eero Saksman