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A method is given to construct globally analytic (in space and time) exact solutions to the focusing cubic nonlinear Schrodinger equation on the line. An explicit formula and its equivalents are presented to express such exact solutions in…

Exactly Solvable and Integrable Systems · Physics 2007-09-12 Tuncay Aktosun , Francesco Demontis , Cornelis van der Mee

We consider methods for constructing explicit solutions of the non-stationary Lam\'e equation, which is a generalization of the classical Lam\'e equation, that has appeared in works on integrable models, conformal field theory, high energy…

Mathematical Physics · Physics 2017-02-20 Farrokh Atai

Some solutions of the Heavenly equations and their generalizations are considered

General Relativity and Quantum Cosmology · Physics 2007-05-23 Valerii Dryuma

The compact explicit expressions for formal exact operator solutions to Cauchy problem for sufficiently general systems of nonlinear differential equations (ODEs and PDEs) in the form of chronological operator exponents are given. The…

Mathematical Physics · Physics 2009-10-21 Yu. N. Kosovtsov

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

A general formalism to solve nonlinear differential equations is given. Solutions are found and reduced to those of second order nonlinear differential equations in one variable. The approach is uniformized in the geometry and solves…

General Physics · Physics 2007-05-23 Gordon Chalmers

We present n-dimensional vortex-ring-like and potential-like solutions with unusual properties related to some elliptical differential equations with compact sources. Solutions have almost 3- or 2-dimensional behaviour in the spaces with…

Mathematical Physics · Physics 2007-05-23 A. D. Popova

Linear differential equations of arbitrary order with polynomial coefficients are considered. Specifically, necessary and sufficient conditions for the existence of polynomial solutions of a given degree are obtained for these equations. An…

Mathematical Physics · Physics 2011-09-27 H. Azad , A. Laradji , M. T. Mustafa

Coupled discrete models abound in several areas of physics. Here we provide an extensive set of exact quasiperiodic solutions of a number of coupled discrete models in terms of Lame polynomials of order one and two. Some of the models…

Pattern Formation and Solitons · Physics 2015-05-30 Avinash Khare , Avadh Saxena

Solutions which are quasimodular forms to a second order differential equation attached to a triangular group are explicitly described in terms of certain orthogonal polynomials.

Number Theory · Mathematics 2007-05-23 Masanobu Kaneko , Masao Koike

In this paper, we provide a systematic way of finding explicit solutions for a class of continuous fragmentation equations with growth or decay in the state space and derive explicit solutions in the cases of constant and linear…

Analysis of PDEs · Mathematics 2022-04-20 Jacek Banasiak , David Wetsi Poka , Sergey Shindin

Exact solutions of the relativistic many-body problem are presented

High Energy Physics - Theory · Physics 2015-06-26 Domingo J. Louis-Martinez

In this article we give in analytical closed form the solutions of the Direchlet problems for the Laplace equations with inverse square and singular P\"oschl-Teller potentials

Mathematical Physics · Physics 2016-11-15 Mohamed Vall Ould Moustapha

The solutions, in terms of orthogonal polynomials, of Dirac equation with analytically solvable potentials are investigated within a novel formalism by transforming the relativistic equation into a Schrodinger like one. Earlier results are…

Quantum Physics · Physics 2009-11-13 M Kocak , B Gonul

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

This paper describes infinite sets of polynomial equations in infinitely many variables with the property that the existence of a solution or even an approximate solution for every finite subset of the equations implies the existence of a…

Functional Analysis · Mathematics 2025-03-03 Melvyn B. Nathanson , David A. Ross

We construct explicit equations of Cartwright-Steger and related surfaces.

Algebraic Geometry · Mathematics 2024-04-17 Lev A. Borisov , Sai-Kee Yeung

Modular and quasimodular solutions of specific second order differential equation in the upper-half plane which originates from a study of supersingular j-invariants are given explicitly. A characterization of the differential equation is…

Number Theory · Mathematics 2007-05-23 Masanobu Kaneko , Masao Koike

We give an explicit determinant formula for a class of rational solutions of the Painlev\'e V equation in terms of the universal characters.

Exactly Solvable and Integrable Systems · Physics 2007-05-23 Tetsu Masuda , Yasuhiro Ohta , Kenji Kajiwara

It is shown that there exist solutions of the quasipotential equations exhibiting the abnormal type behaviour of the Bethe-Salpeter equation.