Results 21 to 30 of about 2,100,774 (208)

Multiscale expansion and integrability properties of the lattice potential KdV equation [PDF]

open access: yes, 2008
We apply the discrete multiscale expansion to the Lax pair and to the first few symmetries of the lattice potential Korteweg-de Vries equation. From these calculations we show that, like the lowest order secularity conditions give a nonlinear Schrödinger
Decio Levi   +10 more
core   +1 more source

Existence of global solutions to a quasilinear Schrödinger equation with general nonlinear optimal control conditions

open access: yesBoundary Value Problems, 2020
In this article, we study a modified maximum principle approach under condition on the weight of the delay term in the feedback and the weight of the term without delay.
Yisheng Hu   +3 more
doaj   +1 more source

Noncommutative Reduction of Nonlinear Schrödinger Equation on Lie Groups

open access: yesUniverse, 2022
We propose a new approach that allows one to reduce nonlinear equations on Lie groups to equations with a fewer number of independent variables for finding particular solutions of the nonlinear equations.
Alexander Breev   +2 more
doaj   +1 more source

Optical solitons and modulation instability analysis to the quadratic-cubic nonlinear Schrödinger equation [PDF]

open access: yes, 2018
This paper obtains the dark, bright, dark-bright, dark-singular optical and singular soliton solutions to the nonlinear Schrödinger equation with quadratic-cubic nonlinearity (QC-NLSE), which describes the propagation of solitons through optical fibers ...
Yusuf, Abdullahi   +3 more
core   +1 more source

Novel Optical Soliton Waves in Metamaterials with Parabolic Law of Nonlinearity via the IEFM and ISEM

open access: yesJournal of Function Spaces, 2022
Here, the miscellaneous soliton solutions of the generalized nonlinear Schrödinger equation are considered that describe the model of few-cycle pulse propagation in metamaterials with parabolic law of nonlinearity.
Xiaoyan Li   +5 more
doaj   +1 more source

The First Integral Method to the Nonlinear Schrodinger Equations in Higher Dimensions

open access: yesAbstract and Applied Analysis, 2013
The first integral method introduced by Feng is adopted for solving some important nonlinear partial differential equations, including the (2 + 1)-dimensional hyperbolic nonlinear Schrodinger (HNLS) equation, the generalized nonlinear Schrodinger (GNLS ...
Shoukry Ibrahim Atia El-Ganaini
doaj   +1 more source

On Darboux transformations for the derivative nonlinear Schrödinger equation [PDF]

open access: yes, 2014
We consider Darboux transformations for the derivative nonlinear Schrödinger equation. A new theorem for Darboux transformations of operators with no derivative term are presented and proved.
Yılmaz, Halis   +2 more
core   +1 more source

TRAVELING WAVE SOLUTIONS OF TWO-DIMENSIONAL NONLINEAR SCHRODINGER EQUATION VIA SINE-COSINE METHOD

open access: yesEurasian Physical Technical Journal, 2020
In this work, an analytical study of the two-dimensional nonlinear Schrodinger equation is presented, namely, the applicability of the sine-cosine method to search for the exact solution as a traveling wave.
G.N. Shaikhova, B.B. Kutum
doaj   +1 more source

Linear and Nonlinear Perturbed Wave Equations [PDF]

open access: yes, 2008
We consider several Cauchy problems for the wave equation with some perturbation. First of all, we consider the wave equation with a metric perturbation, that is, we consider the d'Alembert operator in the Schwarzschild metric (which is a model for a ...
CATANIA, DAVIDE
core   +1 more source

Effect of Third-Order Dispersion on the Solitonic Solutions of the Schrödinger Equations with Cubic Nonlinearity

open access: yesAdvances in Mathematical Physics, 2014
We derive the solitonic solution of the nonlinear Schrödinger equation with cubic nonlinearity, complex potentials, and time-dependent coefficients using the Darboux transformation.
H. Chachou Samet   +3 more
doaj   +1 more source

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