Results 11 to 20 of about 1,545,883 (293)

Singularity and Decay Estimates for a Degenerate Parabolic Equation

open access: yesComplexity, 2021
In this paper, a degenerate parabolic equation ut−divxθ∇u=xaup with p>1 and ...
Dongyan Li
doaj   +4 more sources

Pullback Attractors for a Nonautonomous Retarded Degenerate Parabolic Equation

open access: yesDiscrete Dynamics in Nature and Society, 2020
This paper is devoted to a nonautonomous retarded degenerate parabolic equation. We first show the existence and uniqueness of a weak solution for the equation by using the standard Galerkin method.
Fahe Miao, Hui Liu, Jie Xin
doaj   +2 more sources

On the Cauchy problem for a degenerate parabolic differential equation

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1998
The aim of this work is to prove the existence and the uniqueness of the solution of a degenerate parabolic equation. This is done using H. Tanabe and P.E. Sobolevsldi theory.
Ahmed El-Fiky
doaj   +2 more sources

Existence and continuity of global attractors for a degenerate semilinear parabolic equation

open access: yesElectronic Journal of Differential Equations, 2009
In this article, we study the existence and the upper semicontinuity with respect to the nonlinearity and the shape of the domain of global attractors for a semilinear degenerate parabolic equation involving the Grushin operator.
Cung The Anh, Tran Dinh Ke
doaj   +3 more sources

ON AN OPTIMAL STARTING CONTROL PROBLEM FOR DEGENERATE PARABOLIC EQUATION

open access: yesVìsnik Dnìpropetrovsʹkogo Unìversitetu: Serìâ Modelûvannâ, 2013
An optimal control problem for degenerate parabolic equation with mixed boundary conditions are considered. Having applied the Hardy - Poincare inequality, it is shown that this problem has a unique optimal solution in the correspondence weighted Sobolev
I. G. Balanenko, P. I. Kogut
doaj   +2 more sources

Homogenization of a nonlinear degenerate parabolic differential equation

open access: yesElectronic Journal of Differential Equations, 2001
In this article, we study the homogenization of the nonlinear degenerate parabolic equation $$ partial_t b({x /varepsilon},u_varepsilon) - mathop{ m div} a({x /varepsilon},{t /varepsilon}, u_varepsilon,abla u_varepsilon)=f(x,t), $$ with mixed boundary ...
A. K. Nandakumaran, M. Rajesh
doaj   +1 more source

Inverse problem of determining the coefficients in a degenerate parabolic equation

open access: yesElectronic Journal of Differential Equations, 2014
We consider the inverse problem of identifying the time-dependent coefficients in a degenerate parabolic equation. The conditions of existence and uniqueness of the classical solution to this problem are established. We investigate the case of weak
Nadiya Huzyk
doaj   +1 more source

Strong Traces to Degenerate Parabolic Equations [PDF]

open access: yesSIAM Journal on Mathematical Analysis, 2022
We prove existence of strong traces at $t=0$ for quasi-solutions to (multidimensional) degenerate parabolic equations with no nondegeneracy conditions. In order to solve the problem, we combine the blow-up method and a strong precompactness result for quasi-solutions to degenerate parabolic equations with the induction argument with respect to the ...
Marko Erceg, Darko Mitrovic
openaire   +6 more sources

Ab Initio Thermoelectric Transport Calculations of Alloyed Half-Heuslers. [PDF]

open access: yesAdv Sci (Weinh)
The effect of alloying on the electronic transport of half‐Heusler thermoelectric materials is explored using a fully ab initio approach. A novel method is developed that combines calculations of alloyed supercells with Boltzmann transport, considering the full energy and momentum dependent scattering processes from first principles extracted ...
Kumar A, Sahni B, Neophytou N.
europepmc   +2 more sources

Controllability of nonlinear degenerate parabolic cascade systems

open access: yesElectronic Journal of Differential Equations, 2016
This article studies of null controllability property of nonlinear coupled one dimensional degenerate parabolic equations. These equations form a cascade system, that is, the solution of the first equation acts as a control in the second equation and
Mamadou Birba, Oumar Traore
doaj   +1 more source

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