Results 41 to 50 of about 99,299 (234)

Explicit and exact travelling wave solutions for Hirota equation and computerized mechanization.

open access: yesPLoS ONE
By using the power-exponential function method and the extended hyperbolic auxiliary equation method, we present the explicit solutions of the subsidiary elliptic-like equation.
Bacui Li, Fuzhang Wang, Sohail Nadeem
doaj   +1 more source

Numerical solution of a critical Sobolev exponent problem with weight on š•Š3

open access: yesJournal of Taibah University for Science, 2021
In this paper, we prove the existence of a positive solution for elliptic nonlinear partial differential equation with weight involving a critical exponent of Sobolev imbedding on $ \mathbb {S}^{3} $ .
Adel Almarashi   +3 more
doaj   +1 more source

On the definition of ellipticity for systems of partial differential equations

open access: yesJournal of Mathematical Analysis and Applications, 1991
The paper is devoted to the study of ellipticity of partial differential equations and systems. In particular the author studies the relationship between the concepts introduced by \textit{A. Douglis} and \textit{L. Nirenberg} [Commun. Pure Appl. Math. 8, 503--538 (1955; Zbl 0066.08002)] and by \textit{M. H. Protter} [Pitman Res. Notes Math., Ser. 175,
openaire   +3 more sources

Classification of Exact Solutions for Generalized Form of Equation

open access: yesAbstract and Applied Analysis, 2013
The classification of exact solutions, including solitons and elliptic solutions, to the generalized equation by the complete discrimination system for polynomial method has been obtained.
Hasan Bulut
doaj   +1 more source

The (G′/G)-expansion method for solving a nonlinear PDE describing the nonlinear low-pass electrical lines

open access: yesJournal of Taibah University for Science, 2019
In this paper, we apply the (G′/G)-expansion method based on three auxiliary equations, namely, the generalized Riccati equation $ G^{\prime}(\xi ) = r + pG(\xi ) + q{G^2}(\xi ) $ , the Jacobi elliptic equation $ {({G^{\prime}(\xi )} )^2} = R + Q{G^2 ...
Ayad M. Shahoot   +4 more
doaj   +1 more source

A double inverse problem for Fredholm integro-differential equation of elliptic type

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. SeriĆ¢: Fiziko-Matematičeskie Nauki, 2014
In this paper the double inverse problem for partial differential equations is considered. The method of studying the one value solvability of the double inverse problem for a Fredholm integro-differential equation of elliptic type with degenerate kernel
Tursun K Yuldashev
doaj   +1 more source

Abundant Explicit and Exact Solutions for the Variable Coefficient mKdV Equations

open access: yesAbstract and Applied Analysis, 2013
This paper is concerned with the variable coefficients mKdV (VC-mKdV) equation. First, through some transformation we convert VC-mKdV equation into the constant coefficient mKdV equation.
Xiaoxiao Zheng, Yadong Shang, Yong Huang
doaj   +1 more source

Explicit solutions of some equations and systems of mathematical physics

open access: yesAdvances in Difference Equations, 2020
This paper deals at first with a fully integrable evolution system of nonlinear partial differential equations (PDEs) which is a generalization of the classical Heisenberg ferromagnet equation.
Angela Slavova, Petar Popivanov
doaj   +1 more source

Reduced-order modeling using the frequency-domain method for parabolic partial differential equations

open access: yesAIMS Mathematics, 2023
This paper suggests reduced-order modeling using the Galerkin proper orthogonal decomposition (POD) to find approximate solutions for parabolic partial differential equations.
Jeong-Kweon Seo, Byeong-Chun Shin
doaj   +1 more source

Existence of horizons in Robinson-Trautman spacetimes of arbitrary dimension

open access: yes, 2010
We derive the higher dimensional generalization of Penrose-Tod equation describing past horizon in Robinson-Trautman spacetimes with a cosmological constant and pure radiation. Results for D=4 dimensions are summarized.
Svitek, Otakar
core   +1 more source

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