Results 11 to 20 of about 1,202,128 (276)

The Modified Rational Jacobi Elliptic Functions Method for Nonlinear Differential Difference Equations

open access: yesJournal of Applied Mathematics, 2012
We modified the rational Jacobi elliptic functions method to construct some new exact solutions for nonlinear differential difference equations in mathematical physics via the lattice equation, the discrete nonlinear Schrodinger equation with a saturable
Khaled A. Gepreel   +2 more
doaj   +1 more source

A New Newton Method with Memory for Solving Nonlinear Equations

open access: yesMathematics, 2020
A new Newton method with memory is proposed by using a variable self-accelerating parameter. Firstly, a modified Newton method without memory with invariant parameter is constructed for solving nonlinear equations. Substituting the invariant parameter of
Xiaofeng Wang, Yuxi Tao
doaj   +1 more source

Distribution of flows in a channel network under steady flow conditions

open access: yesActa Scientiarum Polonorum. Formatio Circumiectus, 2019
Aim of the study The article presents an algorithm for calculating the distribution of flow in a junction of open channel network under steady flow conditions.
Dariusz Gąsiorowski   +1 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

Amplitude-equation formalism for four-wave-mixing geometry with transmission gratings [PDF]

open access: yes, 1997
An amplitude equation is derived for a four-wave-mixing geometry with nearly counterpropagating, mutually incoherent, nondiffracting pump beams, spatially overlapping in a photorefractive material with a nonlocal response.
Cross, M. C., Engin, D., Yariv, A.
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

Binary Darboux Transformation for the Sasa-Satsuma Equation [PDF]

open access: yes, 2015
The Sasa-Satsuma equation is an integrable higher-order nonlinear Schr\"odinger equation. Higher-order and multicomponent generalisations of the nonlinear Schr\"odinger equation are important in various applications, e.g., in optics.
Nimmo, Jonathan J. C., Yilmaz, Halis
core   +2 more sources

Computation of semi-analytical solutions of fuzzy nonlinear integral equations

open access: yesAdvances in Difference Equations, 2020
In this article, we use a fuzzy number in its parametric form to solve a fuzzy nonlinear integral equation of the second kind in the crisp case. The main theme of this article is to find a semi-analytical solution of fuzzy nonlinear integral equations. A
Zia Ullah   +3 more
doaj   +1 more source

Multiple Breathers on a Vortex Filament [PDF]

open access: yes, 2014
In this paper we investigate the correspondence between the Da Rios-Betchov equation, which appears in the three-dimensional motion of a vortex filament, and the nonlinear Schrödinger equation.
Akhmediev   +12 more
core   +1 more source

Linearisation of a second-order nonlinear ordinary differential equation

open access: yesActa Polytechnica, 2023
We analyse nonlinear second-order differential equations in terms of algebraic properties by reducing a nonlinear partial differential equation to a nonlinear second-order ordinary differential equation via the point symmetry f(v)∂v.
Adhir Maharaj   +3 more
doaj   +1 more source

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