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We present some results in the analysis of non-compact differential equations on unbounded domains.

Analysis of PDEs · Mathematics 2007-05-23 Simone Secchi

We prove some new results on existence of solutions to first--order ordinary differential equations with deviating arguments. Delay differential equations are included in our general framework, which even allows deviations to depend on the…

Classical Analysis and ODEs · Mathematics 2014-02-26 Rubén Figueroa , Rodrigo López Pouso

In order to find closed form solutions of nonintegrable nonlinear ordinary differential equations, numerous tricks have been proposed. The goal of this short review is to recall classical, 19th-century results, completed in 2006 by…

Exactly Solvable and Integrable Systems · Physics 2025-03-04 Robert Conte , Micheline Musette , Tuen Wai Ng , Chengfa Wu

We survey the various constructions of forward self-similar solutions (and generalizations of self-similar solutions) to the Navier-Stokes equations. We also include and prove an extension of a recent result from [7].

Analysis of PDEs · Mathematics 2018-02-02 Zachary Bradshaw , Tai-Peng Tsai

Using Nevanlinna's value distribution theory and the complex difference theory , the existence of the finite order of the entire solutions of the Fermat type of the complex differential-difference equation and the systems of complex…

Complex Variables · Mathematics 2017-12-25 Xianfeng Su , Qingcai Zhang

Contemporary presentation of the version 1 demonstrates briefly the development of our investigations and our future goals. The improved free of difficulties in interpretation and printing errors version is presented. The 256-dimensional…

Mathematical Physics · Physics 2021-10-04 V. M. Simulik , I. Yu. Krivsky

Thirty research questions on meromorphic functions and complex differential equations are listed and discussed. The main purpose of this paper is to make this collection of problems available to everyone.

Complex Variables · Mathematics 2015-09-09 Gary G. Gundersen

We derive exact solutions to the one-dimensional Schr\"odinger equation for compact support parabolic and hyperbolic secant potential barriers, along with combinations of these types of potential barriers. We give the expressions for…

Quantum Physics · Physics 2026-01-29 Peter Collas , David Klein

In this paper we establish some results about the existence and precise forms of finite order entire solutions of some systems of quadratic trinomial functional equations one of which in $\mathbb{C}^n$, $n\in\mathbb{N}$ and other two in…

Complex Variables · Mathematics 2023-11-02 Goutam Haldar

A supersymmetric technique for the solution of the effective mass Schr\"{o}% dinger equation is proposed. Exact solutions of the Schroedinger equation corresponding to a number of potentials are obtained. The potentials are fully…

Quantum Physics · Physics 2009-11-10 Ramazan Koc , Hayriye Tutunculer

We obtain exact solutions to the class of parabolic partial differential equations of arbitrary dimensionality and with arbitrary potentials. The solutions are presented in a compact-form: as explicit mathematical expressions consisting of…

Mathematical Physics · Physics 2023-08-29 Ivan Gonoskov

A formulation of the Maxwell equations in terms of the split octonions is presented.

Mathematical Physics · Physics 2009-06-12 Pawel Nurowski

In the article it was shown the convergence of special integral of two dimensional Terry's problem. Main tools of the article are an investigation of real algebraic varieties and estimations of areas of algebraic surfaces.

Classical Analysis and ODEs · Mathematics 2017-01-31 Ilgar Jabbarov

In this paper, we give the existence and uniqueness of the strong solution of one dimensional linear parabolic equation with mixed boundary conditions. The boundary conditions can be any kind of mixed Dirichlet, Neumann and Robin boundary…

Analysis of PDEs · Mathematics 2013-11-26 Xiaoping Fang , Youjun Deng , Jing Li

We review the results having the property of maximal transcendentality.

High Energy Physics - Phenomenology · Physics 2015-06-12 A. V. Kotikov

The Integration Theory of Linear Ordinary Differential Equation.

General Mathematics · Mathematics 2014-02-17 T. G. Nezbailo

The asymptotic expansion of the Korteweg-de Vries-Burgers equation is presented in this paper.

Mathematical Physics · Physics 2014-03-17 Jian-Jun Shu

We analyse the exact solutions of a conditionally-solvable Schr\"odinger equation with a rational potential. From the nodes of the exact eigenfunctions we derive a connection between the otherwise isolated exact eigenvalues and the actual…

Quantum Physics · Physics 2024-10-22 Francisco M. Fernández

For the first time exact analytical solutions to the eikonal equations in (1+1) dimensions with a refractive index being a saturated function of intensity are constructed. It is demonstrated that the solutions exhibit collapse; an explicit…

Mathematical Physics · Physics 2010-07-15 Martin E. Garcia , Vladimir F. Kovalev , Larisa L. Tatarinova

We provide the detailed proof of a strengthened version of the M. Artin Approximation Theorem.

Complex Variables · Mathematics 2015-05-19 Arkadiusz Ploski