Results 1 to 10 of about 137,687 (347)

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

Postprocessing for Stochastic Parabolic Partial Differential Equations [PDF]

open access: greenSIAM Journal on Numerical Analysis, 2007
We investigate the strong approximation of stochastic parabolic partial differential equations with additive noise. We introduce postprocessing in the context of a standard Galerkin approximation, although other spatial discretizations are possible. In time, we follow [G. J. Lord and J. Rougemont, IMA J. Numer. Anal., 24 (2004), pp. 587-604] and use an
Gabriel J. Lord, Tony Shardlow
openalex   +4 more sources

Minimal solutions to a class of parabolic partial differential equations [PDF]

open access: bronzeProceedings of the American Mathematical Society, 1969
The problem considered is that of minimizing a linear function \(L(u(t^1,x))\) on the class of linear functionals satisfying (*) \(u_t = Eu\) and certain initial and boundary conditions on a set \(T\times \Omega_0\) where \(T= [t^0,t^1]\), \(\Omega_0\) is a compact subset in Euclidean space and \(E\in\mathcal E\), a set of linear elliptic operators ...
T. Guinn, Edward M. Landesman
openalex   +3 more sources

Positive Solutions of a Nonlinear Parabolic Partial Differential Equation [PDF]

open access: yesAbstract and Applied Analysis, 2014
We deal with the existence and uniqueness of positive solutions to a class of nonlinear parabolic partial differential equations, by using some fixed point theorems for mixed monotone operators with perturbation.
Chengbo Zhai, Shunyong Li
doaj   +4 more sources

The Method of Lines for Parabolic Partial Integro-Differential Equations [PDF]

open access: bronzeJournal of Integral Equations and Applications, 1992
The author discusses a method of lines for nonlinear Volterra partial integro-differential equations of parabolic type. In the first step of discretization, a finite difference method is used in the spatial direction to obtain a system of nonlinear stiff Volterra integro- differential equations in time.
J.-P. Kauthen
openalex   +5 more sources

Reducing parabolic partial differential equations to canonical form [PDF]

open access: greenEuropean Journal of Applied Mathematics, 1994
A simple method of reducing a parabolic partial differential equation to canonical form if it has only one term involving second derivatives is the following: find the general solution of the first-order equation obtained by ignoring that term and then seek a solution of the original equation which is a function of one more independent variable ...
J. F. Harper
openalex   +4 more sources

An inverse problem for a parabolic partial differential equation

open access: yesRocky Mountain Journal of Mathematics, 1983
This is a very interesting problem and the paper seems to me to be a good piece of work. The investigation involves finding the solution u(x,t) and the coefficient a(x) in the boundary-initial value problem \[ (P)u_ t- u_{xx}+a(x)u=0,\quad ...
W. Rundell
semanticscholar   +5 more sources

Homogenization of a nonlinear random parabolic partial differential equation [PDF]

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 ...
É. Pardoux, Andrey L. Piatnitski
semanticscholar   +2 more sources

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