Results 11 to 20 of about 4,191 (239)

Solutions for Multitime Reaction–Diffusion PDE

open access: yesMathematics, 2022
A previous paper by our research group introduced the nonlinear multitime reaction–diffusion PDE (with oblique derivative) as a generalized version of the single-time model.
Cristian Ghiu, Constantin Udriste
doaj   +1 more source

Learning local Dirichlet-to-Neumann maps of nonlinear elliptic PDEs with rough coefficients* [PDF]

open access: yesESAIM: Proceedings and Surveys
Partial Differential Equations (PDEs) involving high-contrast and oscillating coefficients are common in scientific and industrial applications. Numerically approximating these PDEs is a challenging task, which can be addressed, for example, through ...
Boutilier Miranda   +2 more
doaj   +1 more source

On linear and nonlinear fractional PDEs [PDF]

open access: yesTheoretical and Applied Mechanics, 2013
In this study, Variational Iteration Method (VIM) has been applied to obtain the analytical solutions of fractional order nonlinear partial differential equations.
Ahmad Jamshad   +2 more
doaj   +1 more source

An Efficient Numerical Approach for Solving Nonlinear Coupled Hyperbolic Partial Differential Equations with Nonlocal Conditions

open access: yesAbstract and Applied Analysis, 2014
One of the most important advantages of collocation method is the possibility of dealing with nonlinear partial differential equations (PDEs) as well as PDEs with variable coefficients.
A. H. Bhrawy   +2 more
doaj   +1 more source

Comparison of the Effectiveness of Different Methods for Constructing Exact Solutions to Nonlinear PDEs. Generalizations and New Solutions

open access: yesMathematics, 2019
The paper shows that, in looking for exact solutions to nonlinear PDEs, the direct method of functional separation of variables can, in certain cases, be more effective than the method of differential constraints based on the compatibility analysis of ...
Andrei D. Polyanin
doaj   +1 more source

ASYMPTOTIC SCALING SYMMETRIES FOR NONLINEAR PDES [PDF]

open access: yesInternational Journal of Geometric Methods in Modern Physics, 2005
In some cases, solutions to nonlinear PDEs happen to be asymptotically (for large x and/or t) invariant under a group G which is not a symmetry of the equation. After recalling the geometrical meaning of symmetries of differential equations — and solution-preserving maps — we provide a precise definition of asymptotic symmetries of PDEs; we deal in ...
G. Gaeta, R. Mancinelli
openaire   +2 more sources

The homogeneous balance of undetermined coefficients method and its application

open access: yesOpen Mathematics, 2016
The homogeneous balance of undetermined coefficients method is firstly proposed to solve such nonlinear partial differential equations (PDEs), the balance numbers of which are not positive integers.
Wei Yi, He Xin-Dang, Yang Xiao-Feng
doaj   +1 more source

Nonlinear PDEs with Modulated Dispersion I: Nonlinear Schrödinger Equations [PDF]

open access: yesCommunications in Partial Differential Equations, 2015
We start a study of various nonlinear PDEs under the effect of a modulation in time of the dispersive term. In particular in this paper we consider the modulated non-linear Schr dinger equation (NLS) in dimension 1 and 2 and the derivative NLS in dimension 1. We introduce a deterministic notion of "irregularity" for the modulation and obtain local and
Chouk, K., Gubinelli, M.
openaire   +2 more sources

Applications of the homotopy perturbation method for some linear and non-linear partial differential equations

open access: yesDesimal, 2023
In this study, some linear PDEs and nonlinear PDEs are investigated using the homotopy perturbation method (HPM). The primary objective of this research is to employ the HPM as a tool for investigating a range of PDEs and extracting their analytical ...
Md. Mizanur Rahman   +2 more
doaj   +1 more source

Thermal and solute aspects among two viscosity models in synovial fluid inserting suspension of tri and hybrid nanomaterial using finite element procedure

open access: yesScientific Reports, 2022
Inclusion of nanoparticles boosts thermal performance and is essential for thermal transport. The current investigation has been made to conduct research on heat mass transport in synovial material with the mixing of hybrid and tri-hybrid comprising ...
Umar Nazir   +7 more
doaj   +1 more source

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