Results 1 to 10 of about 4,099 (147)

Comments on whether nonlinear fractional partial differential equations have soliton solutions

open access: yesPartial Differential Equations in Applied Mathematics, 2022
It is well known that many nonlinear integer-order partial differential equations (PDEs) have soliton solutions, this is an indisputable fact in the field of soliton theory.
Weiguo Rui
doaj   +1 more source

Reductions and Exact Solutions of Nonlinear Wave-Type PDEs with Proportional and More Complex Delays

open access: yesMathematics, 2023
The study gives a brief overview of publications on exact solutions for functional PDEs with delays of various types and on methods for constructing such solutions.
Andrei D. Polyanin, Vsevolod G. Sorokin
doaj   +1 more source

Multidimensional transonic shock waves and free boundary problems

open access: yesBulletin of Mathematical Sciences, 2022
We are concerned with free boundary problems arising from the analysis of multidimensional transonic shock waves for the Euler equations in compressible fluid dynamics.
Gui-Qiang G. Chen, Mikhail Feldman
doaj   +1 more source

Nonlinear Pantograph-Type Diffusion PDEs: Exact Solutions and the Principle of Analogy

open access: yesMathematics, 2021
We study nonlinear pantograph-type reaction–diffusion PDEs, which, in addition to the unknown u=u(x,t), also contain the same functions with dilated or contracted arguments of the form w=u(px,t), w=u(x,qt), and w=u(px,qt), where p and q are the free ...
Andrei D. Polyanin, Vsevolod G. Sorokin
doaj   +1 more source

A novel and efficient method for obtaining Hirota’s bilinear form for the nonlinear evolution equation in (n+1) dimensions

open access: yesPartial Differential Equations in Applied Mathematics, 2022
Bilinearization of nonlinear partial differential equations (PDEs) is essential in the Hirota method, which is a widely used and robust mathematical tool for finding soliton solutions of nonlinear PDEs in a variety of fields, including nonlinear dynamics,
Sachin Kumar, Brij Mohan
doaj   +1 more source

Exact traveling wave solutions for nonlinear PDEs in mathematical physics using the generalized Kudryashov method [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2016
The generalized Kudryashov method is applied in this article for finding the exact solutions of nonlinear partial differential equations (PDEs) in mathematical physics. Solitons and other solutions are given.
Zayed El-Sayed Mohamed El-Sayed   +1 more
doaj   +1 more source

Exact solutions of nonlinear PDE, nonlinear transformations and reduction of nonlinear PDE to a quadrature [PDF]

open access: yesPhysics Letters A, 2001
A method to construct the exact solution of the PDE is presents, which combines the two kind methods(the nonlinear transformation and RQ(Reduction the PDE to a Quadrature problem) method).The nonlinear diffusion equation is chosen to illustrate the method and the exact solutions are obtained.
Yang, Lei, Liu, Jianbin, Yang, Kongqing
openaire   +3 more sources

Exact Solutions of Reaction–Diffusion PDEs with Anisotropic Time Delay

open access: yesMathematics, 2023
This study is devoted to reaction–diffusion equations with spatially anisotropic time delay. Reaction–diffusion PDEs with either constant or variable transfer coefficients are considered.
Andrei D. Polyanin, Vsevolod G. Sorokin
doaj   +1 more source

An efficient algorithm for some highly nonlinear fractional PDEs in mathematical physics. [PDF]

open access: yesPLoS ONE, 2014
In this paper, a fractional complex transform (FCT) is used to convert the given fractional partial differential equations (FPDEs) into corresponding partial differential equations (PDEs) and subsequently Reduced Differential Transform Method (RDTM) is ...
Jamshad Ahmad, Syed Tauseef Mohyud-Din
doaj   +1 more source

On convergence of explicit finite volume scheme for one-dimensional three-component two-phase flow model in porous media

open access: yesDemonstratio Mathematica, 2021
In this work, we develop and analyze an explicit finite volume scheme for a one-dimensional nonlinear, degenerate, convection–diffusion equation having application in petroleum reservoir.
Mostefai Mohamed Lamine   +2 more
doaj   +1 more source

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