Results 11 to 20 of about 1,098 (97)

On the method of pseudopotential for Schrödinger equation with nonlocal boundary conditions

open access: yesAbstract and Applied Analysis, Volume 6, Issue 6, Page 329-338, 2001., 2001
For stationary Schrödinger equation in ℝ n with the finite potential the singular pseudopotential is constructed in the form allowing us to find wave functions. The method does not require the knowledge of the explicit form of a potential and assumes only knowledge of the scattering amplitude for fixed level of energy.
Yuriy Valentinovich Zasorin
wiley   +1 more source

Hirota derivatives and representation theory [PDF]

open access: yes, 2001
It is shown that the Hirota derivative can be used to construct the plethysm for tensor products of representations of {sl}_2(k)
Athorne, C.
core   +2 more sources

(Non)linear instability of periodic traveling waves: Klein–Gordon and KdV type equations

open access: yesAdvances in Nonlinear Analysis, 2014
We prove the existence and nonlinear instability of periodic traveling wave solutions for the critical one-dimensional Klein–Gordon equation. We also establish a linear instability criterium for a KdV type system.
Angulo Pava Jaime, Natali Fabio
doaj   +1 more source

Three‐dimensional Korteweg‐de Vries equation and traveling wave solutions

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 24, Issue 6, Page 379-384, 2000., 2000
The three‐dimensional power Korteweg‐de Vries equation [ut+unux+uxxx] x+uyy+uzz=0, is considered. Solitary wave solutions for any positive integer n and cnoidal wave solutions for n = 1 and n = 2 are obtained. The cnoidal wave solutions are shown to be represented as infinite sums of solitons by using Fourier series expansions and Poisson′s summation ...
Kenneth L. Jones
wiley   +1 more source

Localized Induction Equation for Stretched Vortex Filament [PDF]

open access: yes, 2006
We study numerically the motion of the stretched vortex filaments by using the localized induction equation with the stretch and that without the stretch.Comment: Published in SIGMA (Symmetry, Integrability and Geometry: Methods and Applications) at ...
Kakuhata, Hiroshi, Konno, Kimiaki
core   +4 more sources

Painleve analysis of a class of nonlinear diffusion equations

open access: yesInternational Journal of Stochastic Analysis, Volume 9, Issue 1, Page 77-86, 1996., 1995
We study the Painleve analysis for a class of nonlinear diffusion equations. We find that in some cases it has only the conditional Painleve property and in other cases, just the Painleve property. We also obtained special solutions.
P. Chandrasekaran, E. K. Ramasami
wiley   +1 more source

Andrew Lenard: A Mystery Unraveled [PDF]

open access: yes, 2005
The theory of bi-Hamiltonian systems has its roots in what is commonly referred to as the "Lenard recursion formula". The story about the discovery of the formula told by Andrew Lenard is the subject of this article.Comment: Published in SIGMA (Symmetry,
Praught, Jeffery, Smirnov, Roman G.
core   +2 more sources

Exact solutions for fractional partial differential equations by a new fractional sub-equation method

open access: yes, 2013
In this paper, we propose a new fractional sub-equation method for finding exact solutions of fractional partial differential equations (FPDEs) in the sense of modified Riemann-Liouville derivative, which is the fractional version of the known (G′/G ...
B. Zheng, Chuanbao Wen
semanticscholar   +1 more source

Accurate novel explicit complex wave solutions of the (2+1)-dimensional Chiral nonlinear Schrödinger equation

open access: yesResults in Physics, 2021
This manuscript investigates the accuracy of the solitary wave solutions of the (2+1)-dimensional nonlinear Chiral Schrödinger ((2+1)-D CNLS) equation that are constructed by employing two recent analytical techniques (modified Khater (MKhat) and ...
B. Alshahrani   +6 more
doaj  

Higher-Order Rogue Wave and Rational Soliton Solutions of Discrete Complex mKdV Equations

open access: yesEast Asian Journal on Applied Mathematics, 2018
The generalised perturbation (n, N − n)-fold Darboux transformation is used to derive new higher-order rogue wave and rational soliton solutions of the discrete complex mKdV equations.
Xiaoyong Wen
semanticscholar   +1 more source

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