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We present some classes of functions that are defined on the quaternions as solutions for a linear operator that resembles the Cauchy-Riemann conditions. Unlike the Fueter regular functions; in this case the identity function is a solution…

Analysis of PDEs · Mathematics 2007-05-23 Daniel Alayon-Solarz

The quantum integrable systems associated with the quantum loop algebras $\mathrm U_q(\mathcal L(\mathfrak{sl}_{\, l + 1}))$ are considered. The factorized form of the transfer operators related to the infinite dimensional evaluation…

Mathematical Physics · Physics 2021-08-25 A. V. Razumov

Some physical applications of the Passare-Tsikh solution of a principal quintic equation are discussed. As an example, a quintic equation of state is solved in detail. This approach provides analytical approximations for several problems…

Mathematical Physics · Physics 2009-10-27 Victor Barsan

We present some completely monotonic functions involving the$q$-polygamma functions, our result generalizes some known results.

Classical Analysis and ODEs · Mathematics 2016-01-22 Peng Gao

Some special solutions to the multidimensional Lam\'e and Bourlet type equations are constructed in an explicit form.

solv-int · Physics 2008-02-03 A. V. Razumov , M. V. Saveliev

In 1922 Ritt described polynomial solutions of the functional equation P(f)=Q(g). In this paper we describe solutions of the equation above in the case when P,Q are polynomials while f,g are allowed to be arbitrary entire functions. In…

Complex Variables · Mathematics 2009-09-21 F. Pakovich

We describe a general operational method that can be used in the analysis of fractional initial and boundary value problems with additional analytic conditions. As an example, we derive analytic solutions of some fractional generalisation…

Analysis of PDEs · Mathematics 2013-04-04 Roberto Garra , Federico Polito

Several applied problems are characterized by the need to numerically solve equations with an operator function (matrix function). In particular, in the last decade, mathematical models with a fractional power of an elliptic operator and…

Numerical Analysis · Mathematics 2021-05-24 Petr N. Vabishchevich

We prove compactness of solutions to some fourth order equations with exponential nonlinearities on four manifolds. The proof is based on a refined bubbling analysis, for which the main estimates are given in integral form. Our result is…

Analysis of PDEs · Mathematics 2007-05-23 Andrea Malchiodi

Integral representations of two $q$-difference operators are provided in terms of special functions arising in the theory of asymptotic solutions to $q$-difference equations in the complex domain. Both representations are unified through…

Complex Variables · Mathematics 2026-03-27 Antonio Cáceres , Alberto Lastra , Sławomir Michalik , Maria Suwińska

We propose an operational method for the solution of differential equations involving vector products. The technique we propose is based on the use of the evolution operator, defined in such a way that the wealth of techniques developed…

Mathematical Physics · Physics 2010-09-28 D. Babusci , G. Dattoli , E. Sabia

We investigate solutions for a particular class of linear equations in dendriform algebras. Motivations as well as several applications are provided. The latter follow naturally from the intimate link between dendriform algebras and…

Combinatorics · Mathematics 2010-10-27 Kurusch Ebrahimi-Fard , Dominique Manchon

In this paper, we develop a new deformation and generalization of the Natural integral transform based on the conformable fractional $q$-derivative. We obtain transformation of some deformed functions and apply the transform for solving…

Classical Analysis and ODEs · Mathematics 2018-11-07 Orli Herscovici , Toufik Mansour

It is known that $G$-functions solutions of a linear differential equation of order 1 with coefficients in $\overline{\mathbb{Q}}(z)$, are algebraic (of a very precise form). No general result is known when the order is 2. In this paper, we…

Classical Analysis and ODEs · Mathematics 2025-07-14 Stéphane Fischler , Tanguy Rivoal

This note contains a short proof of the functional equation for the zeta function.

Number Theory · Mathematics 2022-01-19 Keith Ball

In this paper, we complete the classification of 4 x 4 solutions of the Yang-Baxter equation. Regular solutions were recently classified and in this paper we find the remaining non-regular solutions. We present several new solutions, then…

Mathematical Physics · Physics 2026-05-07 Marius de Leeuw , Vera Posch

We construct several types of multi-valued solutions to the Monge-Ampere equation in higher dimensions.

Analysis of PDEs · Mathematics 2007-05-23 Luis Caffarelli , YanYan Li

In this paper, we bring a complete solution to the Ovals problem, as formulated in [3] and [24].

Functional Analysis · Mathematics 2025-04-22 Yacine Chitour , Jochen Denzler , Frédéric Jean , Emmanuel Trélat

We obtain Poisson equations satisfied by elliptic modular graph functions with four links. Analysis of these equations leads to a non--trivial algebraic relation between the various graphs.

High Energy Physics - Theory · Physics 2021-01-27 Anirban Basu

In this paper, we determine all unitary solutions to the Yang-Baxter equation in dimension four. Quantum computation motivates this study. This set of solutions will assist in clarifying the relationship between quantum entanglement and…

Quantum Physics · Physics 2016-09-08 H. A. Dye