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In this paper, we give an elementary proof of the additivity of the functional inverses of the resolvents of large $N$ random matrices, using recently developed matrix model techniques. This proof also gives a very natural generalization of…

Mathematical Physics · Physics 2009-10-31 P. Zinn-Justin

In this paper, we sharpen and generalize Shafer's inequality for the arc tangent function. From this, some known results are refined.

Classical Analysis and ODEs · Mathematics 2010-07-12 Feng Qi , Bai-Ni Guo

We give some conditions under which (uniform) convergence of a family of Dirichlet series to another Dirichlet series implies the convergence of their individual coefficients and/or exponents. We give some applications to some spectral zeta…

Classical Analysis and ODEs · Mathematics 2015-09-15 Gunther Cornelissen , Aristides Kontogeorgis

Family of equations, which is the generalization of the $K(m,m)$ equation, is considered. Periodic wave solutions for the family of nonlinear equations are constructed.

Exactly Solvable and Integrable Systems · Physics 2012-01-04 Nikolay A. Kudryashov , Svetlana G. Prilipko

We introduce generalized notions of a divergence function and a Fisher information matrix. We propose to generalize the notion of an exponential family of models by reformulating it in terms of the Fisher information matrix. Our methods are…

Information Theory · Computer Science 2013-02-22 Jan Naudts , Ben Anthonis

We study a family of generalized continued fractions, which are defined by a pair of substitution sequences in a finite alphabet. We prove that they are stammering sequences, in the sense of Adamczewski and Bugeaud. We also prove that this…

Number Theory · Mathematics 2020-04-15 Túlio O. Carvalho

We describe the geometric structures involved in the variational formulation of physical theories. In presence of these structures, the constitutive set of a physical system can be generated by a family of functions. We discuss conditions,…

Mathematical Physics · Physics 2010-06-23 Wlodzimierz M. Tulczyjew , Pawel Urbanski

We present an asymptotic expansion for a family of multiple integrals connected with relatives of the Dickman function. The coefficients of this expansion have a similar arithmetic structure as those appearing in work of Soundararajan on an…

Number Theory · Mathematics 2017-06-20 C. S. Franze

We present an infinite family of quadratic APN functions on a finite field of dimension over GF(2) divisible by 3.

General Mathematics · Mathematics 2007-07-10 Carl Bracken , Eimear Byrne , Nadya Markin , Gary McGuire

We present an algebraic theory of orthogonal polynomials in several variables that includes classical orthogonal polynomials as a special case. Our bottom line is a straightforward connection between apolarity of binary forms and the inner…

Rings and Algebras · Mathematics 2014-10-20 Pasquale Petrullo , Domenico Senato , Rosaria Simone

A resonance theorem providing existence of functions that are counterexamples for all members of a given family of translation invariant differentiation bases is proved. Applications of the theorem to Zygmund problem on a choice of…

Analysis of PDEs · Mathematics 2015-01-07 Giorgi G. Oniani

We introduce and study a mathematical framework for a broad class of regularization functionals for ill-posed inverse problems: Regularization Graphs. Regularization graphs allow to construct functionals using as building blocks linear…

Optimization and Control · Mathematics 2022-09-28 Kristian Bredies , Marcello Carioni , Martin Holler

We study the arity gap of functions of several variables defined on an arbitrary set A and valued in another set B. The arity gap of such a function is the minimum decrease in the number of essential variables when variables are identified.…

Combinatorics · Mathematics 2016-11-22 Miguel Couceiro , Erkko Lehtonen , Tamás Waldhauser

We define the Schur-Agler class in infinite variables to consist of functions whose restrictions to finite dimensional polydisks belong to the Schur-Agler class. We show that a natural generalization of an Agler decomposition holds and the…

Functional Analysis · Mathematics 2025-07-15 Greg Knese

Let A denote the ring of arithmetical functions with unitary convolution, and let V be a finite subset of the positive integers having the property that for every v in V, all unitary divisors of v lie in V. We study the truncation A_V, an…

Commutative Algebra · Mathematics 2007-05-23 Jan Snellman

We develop a theory of multiplicative functions (with values inside or on the unit circle) in arithmetic progressions analogous to the well-known theory of primes in arithmetic progressions.

Number Theory · Mathematics 2007-05-23 Antal Balog , Andrew Granville , K. Soundararajan

In this paper, we show that for a broad class of pseudoconvex formal-analytic arithmetic surfaces over $\text{Spec}(\mathbb{Z})$, those which admit a nonconstant monic such regular function, that a conjecture of Bost-Charles that the ring…

Complex Variables · Mathematics 2025-12-12 Samuel Goodman

In this paper we generalize notions of iterated integral with regard to an unpredictable process. We establish a formula of integration by parts, the existence of a continuous modification and give an expression of the increasing process.

Probability · Mathematics 2012-02-14 Ludovic Valet

The Lambert W function gives the solutions of a simple exponential polynomial. The generalized Lambert W function was defined by Mez\"{o} and Baricz, and has found applications in delay differential equations and physics. In this article we…

Classical Analysis and ODEs · Mathematics 2018-01-31 Paul Castle

We have established various criteria for the topological transitivity of families of continuous (holomorphic) functions. Furthermore, by leveraging the properties of expanding families of meromorphic functions, we offer an alternative proof…

Complex Variables · Mathematics 2025-06-12 Anil Singh , Banarsi Lal