Results 11 to 20 of about 433,700 (300)

The generalized nonlinear Schrödinger-like equation of cosmogonical body forming: Justification and determination of its particular solutions

open access: yesPartial Differential Equations in Applied Mathematics, 2022
This work justifies the generalized Schrödinger-like equation with logarithmic nonlinearity in the statistical theory of cosmogonical body formation. Within the framework of this theory, the models and evolution equations of the statistical mechanics ...
Alexander M. Krot
doaj   +1 more source

NONLINEAR SCHRÖDINGER-PAULI EQUATIONS [PDF]

open access: yesProceedings of the Conference in Honour of Murray Gell-Mann's 80th Birthday, 2010
We obtain novel nonlinear Schr dinger-Pauli equations through a formal non-relativistic limit of appropriately constructed nonlinear Dirac equations. This procedure automatically provides a physical regularisation of potential singularities brought forward by the nonlinear terms and suggests how to regularise previous equations studied in the ...
Ng, Wei Khim, Parwani, Rajesh R.
openaire   +2 more sources

Soliton, breather, and rogue wave solutions for solving the nonlinear Schrödinger equation using a deep learning method with physical constraints [PDF]

open access: yesChinese Physics B, 2020
The nonlinear Schrödinger equation is a classical integrable equation which contains plenty of significant properties and occurs in many physical areas.
Jun-Cai 俊才 Pu 蒲   +2 more
semanticscholar   +1 more source

Evolution of Water Wave Groups in the Forced Benney–Roskes System

open access: yesFluids, 2023
For weakly nonlinear waves in one space dimension, the nonlinear Schrödinger Equation is widely accepted as a canonical model for the evolution of wave groups described by modulation instability and its soliton and breather solutions.
Montri Maleewong, Roger H. J. Grimshaw
doaj   +1 more source

Bifurcation, chaotic pattern and optical soliton solutions of generalized nonlinear Schrödinger equation

open access: yesResults in Physics, 2023
This article studies the generalized nonlinear Schrödinger equation, which is used to simulate the propagation model of optical pulses in Non-Kerr medium.
Kun Zhang, Zhao Li
doaj   +1 more source

Computational study for the conformable nonlinear Schrödinger equation with cubic–quintic–septic nonlinearities

open access: yesResults in Physics, 2021
The fractional (3+1)-dimensional nonlinear Schrödinger equation with cubic–quintic–septic nonlinearities plays a significant role in the study of ultra-short pulses in highly nonlinear optical phenomena.
Hira Tariq   +6 more
doaj   +1 more source

The extended Fan’s sub-equation method and its application to nonlinear Schrödinger equation with saturable nonlinearity

open access: yesResults in Physics, 2023
This article discusses the saturable nonlinear Schrödinger equation, which is a key equation in the study of condensed matter physics, plasma physics, and nonlinear optics.
Romana Ashraf   +4 more
doaj   +1 more source

Polar compactons and solitons in a two dimensional optical waveguide: Theory and simulations

open access: yesResults in Optics, 2023
The propagation of optical cylindrical compactons and solitons in a two dimensional nonlocal nonlinear waveguide is deeply investigated by carrying a particular emphasis on its nonlinear response function.
Fabien Kenmogne   +6 more
doaj   +1 more source

Nonlinear Schrödinger–Helmholtz equation as numerical regularization of the nonlinear Schrödinger equation [PDF]

open access: yesNonlinearity, 2008
A regularized $ -$system of the Nonlinear Schr dinger Equation (NLS) with $2 $ nonlinear power in dimension $N$ is studied. We prove existence and uniqueness of local solution in the case $1 \le
Cao, Yanping   +2 more
openaire   +2 more sources

Variational Principles and Solitary Wave Solutions of Generalized ‎Nonlinear Schrödinger Equation in the Ocean [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2021
Internal solitary waves are very common physical phenomena in the ocean, which play an important role in the transport of marine matter, momentum and energy.
Meng-Zhu Liu   +4 more
doaj   +1 more source

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