Results 71 to 80 of about 412 (154)

The One Dimensional Focusing Nonlinear Schrödinger Equation and Their Regular Solutions

open access: yesMathematics
We consider the classical one-dimensional focusing nonlinear Schrödinger equation (NLS). We give a brief overview of the techniques used to solve it since its formulation. Then we present various results obtained by the author in recent years.
Pierre Gaillard
doaj   +1 more source

On Asymptotic Behaviors of Acoustic Waves Due to High‐Contrast Material Inclusions

open access: yesStudies in Applied Mathematics, Volume 154, Issue 4, April 2025.
ABSTRACT This paper investigates the asymptotic behaviors of time‐harmonic acoustic waves generated by an incident wave illuminating inhomogeneous medium inclusions with high‐contrast material parameters. We derive sharp asymptotic estimates and obtain several effective acoustic obstacle scattering models when the material parameters take extreme ...
Yueguang Hu, Hongyu Liu
wiley   +1 more source

Double Wronskian Representation of the Nth-Order Solutions to the Davey–Stewartson Equations

open access: yesAxioms
Solutions to the Davey–Stewartson equations (DS) in terms of the determinants of order 2N depending on 4N real parameters are constructed. The Darboux transformation is used to construct solutions of order N to this equation.
Pierre Gaillard
doaj   +1 more source

Wronskian formulation of the spectrum of curvature perturbations

open access: yesJournal of Cosmology and Astroparticle Physics, 2006
13 pages, 1 figures, submitted to JCAP, Minor corrections have been ...
Yokoyama, S   +3 more
openaire   +3 more sources

On the Growths of Meromorphic Function Generated Wronskians from the View Point of Slowly Changing Functions [PDF]

open access: yes, 2015
In the paper we extend and sometimes improve few results on comparative growth properties of composite entire or meromorphic functions using m-th generalized {p}L*-order and the m-th generalized {p}L*-lower order and wronskians generated by one of the ...
Biswas, Tanmay   +2 more
core  

Multi-Soliton Solutions for the Combined KdV–mKdV Equation in Terms of Wronskian with Multi-Wave and Periodic Cross-Kink Dynamics

open access: yesMathematics
This article examines the integrability of the combined KdV-mKdV equation, which provides an effective framework for modeling coherent structures in turbulent flows.
Reem Abdullah Aljethi   +3 more
doaj   +1 more source

Some Approaches to Solving the KP Equation: Different Representations and Various Types of Solutions

open access: yesAxioms
We present different methods to construct solutions to the Kadomtsev–Petviashvili (KP) equation. In the first method, from the solutions to the NLS equation, we construct solutions to the KP equation in terms of Fredholm determinants. We deduce solutions
Pierre Gaillard
doaj   +1 more source

On one generalization of Wronskian

open access: yesLietuvos matematikos rinkinys, 2007
In this article the properties of the specially introduced determinant, elements of which are the divideddifferences in different orders are studied. The close connection of this determinant with the Chebyshevsystem and the ordinary differential equation is indicated.
openaire   +3 more sources

Recurrence coefficients for discrete orthonormal polynomials and the Painlevé equations [PDF]

open access: yes, 2013
We investigate semi-classical generalizations of the Charlier and Meixner polynomials, which are discrete orthogonal polynomials that satisfy three-term recurrence relations.
Clarkson, Peter
core   +1 more source

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