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For families of smooth complex projective varieties we show that normal functions arising from algebraically trivial cycle classes are algebraic, and defined over the field of definition of the family. In particular, the zero loci of those…

Algebraic Geometry · Mathematics 2019-10-17 Jeff Achter , Sebastian Casalaina-Martin , Charles Vial

We introduce characteristic functions for certain contractive liftings of row contractions. These are multi-analytic operators which classify the liftings up to unitary equivalence and provide a kind of functional model. The most important…

Operator Algebras · Mathematics 2007-07-11 Santanu Dey , Rolf Gohm

Ergodic optimization aims to describe dynamically invariant probability measures that maximize the integral of a given function. For a wide class of intrinsically ergodic subshifts over a finite alphabet, we show that the space of…

Dynamical Systems · Mathematics 2026-04-15 Mao Shinoda , Hiroki Takahasi , Kenichiro Yamamoto

In this paper, we build some ergodic theorems involving function $\Omega$, where $\Omega(n)$ denotes the number of prime factors of a natural number $n$ counted with multiplicities. As a combinatorial application, it is shown that for any…

Dynamical Systems · Mathematics 2025-11-19 Rongzhong Xiao

The paper describes ergodic (with respect to the Haar measure) functions in the class of all functions, which are defined on (and take values in) the ring of p-adic integers, and which satisfy (at least, locally) Lipschitz condition with…

Number Theory · Mathematics 2007-07-16 Vladimir Anashin

We survey recent work on normal functions, including limits and singularities of admissible normal functions, the Griffiths-Green approach to the Hodge conjecture, algebraicity of the zero-locus of a normal function, Neron models, and…

Algebraic Geometry · Mathematics 2009-08-27 Matt Kerr , Gregory Pearlstein

We define positive and strictly positive definite functions on a domain and study these functions on a list of regular domains. The list includes the unit ball, conic surface, hyperbolic surface, solid hyperboloid, and simplex. Each of…

Classical Analysis and ODEs · Mathematics 2024-01-02 Martin Buhmann , Yuan Xu

This paper studies ergodic properties of certain measures arising in the dynamics of holomorphic correspondences. These measures, in general, are not invariant in the classical sense of ergodic theory. We define a notion of ergodicity, and…

Dynamical Systems · Mathematics 2024-12-11 Mayuresh Londhe

We consider a family of $(2,1)$-rational functions given on the set of $p$-adic field $Q_p$. Each such function has a unique fixed point. We study ergodicity properties of the dynamical systems generated by $(2,1)$-rational functions. For…

Dynamical Systems · Mathematics 2018-03-07 Iskandar A. Sattarov

We study a class of weight functions on $[-1,1]$, which are special cases of the general weights studied by Bernstein and Szeg\"o, as well as their extentions to the interval $[-a,1]$ for a continuous parameter $a>0$. These weights are…

Classical Analysis and ODEs · Mathematics 2025-09-16 Martin Nicholson

By replacing the Euler gamma function by the Barnes double gamma function in the definition of the Meijer $G$-function, we introduce a new family of special functions, which we call $K$-functions. This is a very general class of functions,…

Classical Analysis and ODEs · Mathematics 2024-03-12 Dmitrii Karp , Alexey Kuznetsov

A result for subadditive ergodic cocycles is proved that provides more delicate information than Kingman's subadditive ergodic theorem. As an application we deduce a multiplicative ergodic theorem generalizing an earlier result of…

Dynamical Systems · Mathematics 2015-09-28 Sébastien Gouëzel , Anders Karlsson

We discuss representations of monogenic functions over very regular groups.

Analysis of PDEs · Mathematics 2025-02-13 Tove Dahn

We study expansiveness properties of positive measure subsets of ergodic $\mathbb{Z}^d$-actions along two different types of structured subsets of $\mathbb{Z}^d$, namely, cyclic subgroups and images of integer polynomials. We prove…

Dynamical Systems · Mathematics 2024-09-30 Alexander Fish , Sean Skinner

The theory of quaternionic slice regular functions was introduced in 2006 and successfully developed for about a decade over symmetric slice domains, which appeared to be the natural setting for their study. Some recent articles paved the…

Complex Variables · Mathematics 2021-05-04 Graziano Gentili , Caterina Stoppato

We aim to introduce a new extension of beta function and to study its important properties. Using this definition, we introduce and investigate new extended hypergeometric and confluent hypergeometric functions. Further, some hybrid…

Classical Analysis and ODEs · Mathematics 2019-01-23 N. U. Khan , T. Usman , M. Aman

For any measure preserving system $(X,\mathcal{B},\mu,T_1,\ldots,T_d),$ where we assume no commutativity on the transformations $T_i,$ $1\leq i\leq d,$ we study the pointwise convergence of multiple ergodic averages with iterates of…

Dynamical Systems · Mathematics 2017-11-07 Sebastián Donoso , Andreas Koutsogiannis , Wenbo Sun

There are important problems in physics related to the concept of probability. One of these problems is related to negative probabilities used in physics from 1930s. In spite of many demonstrations of usefulness of negative probabilities,…

Mathematical Physics · Physics 2009-12-25 Mark Burgin

Our present investigation is motivated essentially by the fact that, in Geometric Function Theory, one can find many interesting and fruitful usages of a wide variety of special functions and special polynomials. The main purpose of this…

Complex Variables · Mathematics 2018-12-12 Nanjundan Magesh , Jagadeesan Yamini , Chinnaswamy Abirami

We find linear (as well as quadratic) relations in a very large class of T-functions. The relations may be used in analysis of T-function-based stream ciphers.

Cryptography and Security · Computer Science 2011-11-22 Tao Shi , Vladimir Anashin , Dongdai Lin