Results 41 to 50 of about 2,627,124 (242)

The exact solutions to the generalized (2+1)-dimensional nonlinear wave equation

open access: yesResults in Physics
Due to the importance of the nonlinear partial differential equations in applied physics and engineering, many mathematicians and physicists are interesting to the nonlinear partial differential equations.
Jianping Li, Can Xu, Junliang Lu
doaj   +1 more source

Exact Solutions to the Sharma-Tasso-Olver Equation by Using Improved G′/G-Expansion Method

open access: yesJournal of Applied Mathematics, 2013
This paper is concerned with a double nonlinear dispersive equation: the Sharma-Tasso-Olver equation. We propose an improved G′/G-expansion method which is employed to investigate the solitary and periodic traveling waves of this equation.
Yinghui He, Shaolin Li, Yao Long
doaj   +1 more source

The numerical solution of the nonlinear hyperbolic-parabolic heat equation

open access: yesDiscrete and Continuous Models and Applied Computational Science
The article discusses a mathematical model and a finite-difference scheme for the heating process of an infinite plate. The disadvantages of using the classical parabolic heat equation for this case and the rationale for using the hyperbolic heat ...
Vladislav N. Khankhasaev   +1 more
doaj   +1 more source

Study on Optimal Conventional Triaxial Strength Criterion of Rock Based on Gauss-Newton Method [PDF]

open access: yesE3S Web of Conferences
Conventional triaxial strength criteria are used widely to judge the rock failure states. In this paper, the nonlinear least squares method (Guass-newton method) is used to fit the regression relationships between the maximum principal stress σ1 as well ...
Tian Mengtao   +4 more
doaj   +1 more source

Solvability of Nonlinear Wave Equation with Nonlinear Integral Neumann Conditions

open access: yesInternational Journal of Analysis and Applications, 2023
In this paper, we examine a nonlinear hyperbolic equation with a nonlinear integral condition. In particular, we prove the existence and the uniqueness of the linear problem by the Fadeo Galerkin method, and by applying an iterative process to some ...
Iqbal M. Batiha   +5 more
doaj   +1 more source

Riemann Invariants and Rank-k Solutions of Hyperbolic Systems [PDF]

open access: yes, 2006
In this paper we employ a "direct method" in order to obtain rank-k solutions of any hyperbolic system of first order quasilinear differential equations in many dimensions.
Huard, Benoit, Grundland, A. Michel
core   +1 more source

The regularization of spectral methods for hyperbolic Volterra integrodifferential equations with fractional power elliptic operator

open access: yesNonlinear Engineering, 2023
In this study, a numerical approach is presented to solve the linear and nonlinear hyperbolic Volterra integrodifferential equations (HVIDEs). The regularization of a Legendre-collocation spectral method is applied for solving HVIDE of the second kind ...
Mirzaei G. F., Rostamy Davood
doaj   +1 more source

The new solitary wave structures for the (2 + 1)-dimensional time-fractional Schrodinger equation and the space-time nonlinear conformable fractional Bogoyavlenskii equations

open access: yesAlexandria Engineering Journal, 2020
The present paper employs the space-time fractional nonlinear Bogoyavlenskii equation and Schrodinger equation. We perform a new method to take some new solitary wave phenomena for each equation.
Md Nur Alam, Cemil Tunç
doaj   +1 more source

Optical solitons with an extended (3+1)-dimensional nonlinear conformable Schrödinger equation including cubic–quintic nonlinearity

open access: yesResults in Physics, 2023
In this paper, we study the extended (3+1)-dimensional nonlinear conformable Schrödinger equation with cubic–quintic nonlinearity. We use three different methods to obtain exact solutions of this equation: the G′/G expansion method, the extended ...
Mohammad Mirzazadeh   +4 more
doaj   +1 more source

A Hyperbolic Approximation of the Nonlinear Schrödinger Equation

open access: yesStudies in Applied Mathematics
ABSTRACT We study a first‐order hyperbolic approximation of the nonlinear Schrödinger (NLS) equation. We show that the system is strictly hyperbolic and possesses a modified Hamiltonian structure, along with at least three conserved quantities that approximate those of NLS.
Abhijit Biswas   +4 more
openaire   +3 more sources

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