Results 11 to 20 of about 235,217 (374)

Ulam-Hyers stability of a parabolic partial differential equation

open access: yesDemonstratio Mathematica, 2019
The goal of this paper is to give an Ulam-Hyers stability result for a parabolic partial differential equation. Here we present two types of Ulam stability: Ulam-Hyers stability and generalized Ulam-Hyers-Rassias stability.
Marian Daniela   +2 more
doaj   +2 more sources

On a parabolic partial differential equation and system modeling a production planning problem

open access: yesElectronic Research Archive, 2022
We consider a parabolic partial differential equation and system derived from a production planning problem dependent on time. Our goal is to find a closed-form solution for the problem considered in our model.
Dragos-Patru Covei
doaj   +2 more sources

Homogenization of a nonlinear random parabolic partial differential equation

open access: yesStochastic Processes and their Applications, 2003
The homogenization problem for a semilinear second order parabolic equation with random coefficients \[ \partial _ {t}u^ \varepsilon = \sum ^ {n}_ {i,j=1}\partial _ {x_ {i}}\Bigl (a_ {ij}\Bigl (\frac {x}{\varepsilon }, \xi _ {t/\varepsilon ^ 2}\Bigr )\partial _ {x_ {j}} u^ \varepsilon \Bigr ) + \frac 1{\varepsilon }g\Bigl (\frac {x}{\varepsilon }, \xi ...
Pardoux, E., Piatnitski, A.L.
openaire   +2 more sources

A model reduction approach to numerical inversion for a parabolic partial differential equation [PDF]

open access: green, 2014
We propose a novel numerical inversion algorithm for the coefficients of parabolic partial differential equations, based on model reduction. The study is motivated by the application of controlled source electromagnetic exploration, where the unknown is ...
Liliana Borcea   +3 more
openalex   +3 more sources

Two approximation methods for fractional order Pseudo-Parabolic differential equations

open access: yesAlexandria Engineering Journal, 2022
In this study, fractional order pseudo-parabolic partial differential equation defined by Caputo derivative is investigated with initial-boundary conditions. Modified double Laplace decomposition method is used to find the exact solution of this equation.
Mahmut. Modanli   +4 more
doaj   +1 more source

A priori estimate of the solution of the Cauchy problem in the Sobolev classes for discontinuous coefficients of degenerate heat equations [PDF]

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2022
Partial differential equations of the parabolic type with discontinuous coefficients and the heat equation degenerating in time, each separately, have been well studied by many authors.
U.K. Koilyshov   +2 more
doaj   +3 more sources

Classical and weak solutions of the partial differential equations associated with a class of two-point boundary value problems

open access: yesBoundary Value Problems, 2018
This paper is concerned with a kind of first-order quasilinear parabolic partial differential equations associated with a class of ordinary differential equations with two-point boundary value problems. We prove that the function given by the solution of
Ning Ma, Zhen Wu
doaj   +1 more source

Periodic homogenization of a pseudo-parabolic equation via a spatial-temporal decomposition [PDF]

open access: yes, 2018
Pseudo-parabolic equations have been used to model unsaturated fluid flow in porous media. In this paper it is shown how a pseudo-parabolic equation can be upscaled when using a spatio-temporal decomposition employed in the Peszyn'ska-Showalter-Yi paper [
AJ Vromans   +6 more
core   +4 more sources

Solving linear parabolic rough partial differential equations [PDF]

open access: yes, 2018
We study linear rough partial differential equations in the setting of [Friz and Hairer, Springer, 2014, Chapter 12]. More precisely, we consider a linear parabolic partial differential equation driven by a deterministic rough path $\mathbf{W}$ of H ...
Bayer, Christian   +4 more
core   +3 more sources

A Strongly A-Stable Time Integration Method for Solving the Nonlinear Reaction-Diffusion Equation

open access: yesAbstract and Applied Analysis, 2015
The semidiscrete ordinary differential equation (ODE) system resulting from compact higher-order finite difference spatial discretization of a nonlinear parabolic partial differential equation, for instance, the reaction-diffusion equation, is highly ...
Wenyuan Liao
doaj   +1 more source

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