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Singularity for a nonlinear degenerate hyperbolic-parabolic coupled system arising from nematic liquid crystals

open access: yesAdvances in Nonlinear Analysis, 2022
This article focuses on the singularity formation of smooth solutions for a one-dimensional nonlinear degenerate hyperbolic-parabolic coupled system originating from the Poiseuille flow of nematic liquid crystals.
Hu Yanbo
doaj   +1 more source

Regularity of random attractors for stochastic semilinear degenerate parabolic equations

open access: yesElectronic Journal of Differential Equations, 2012
We consider the stochastic semilinear degenerate parabolic equation $$ du+[- operatorname{div}(sigma(x)abla u) + f(u) + lambda u]dt = gdt+ sum_{j=1}^{m}h_j{domega_j} $$ in a bounded domain $mathcal{O}subset mathbb {R}^N$, with the nonlinearity ...
Cung The Anh   +2 more
doaj  

On the behavior of the solutions of degenerate parabolic equations [PDF]

open access: yesNagoya Mathematical Journal, 1999
AbstractIn this paper we consider degenerate parabolic equations, and obtain an interior and a boundary Harnack inequalities for nonnegative solutions to the degenerate parabolic equations. Furthermore we obtain boundedness and continuity of the solutions.
openaire   +3 more sources

A relaxation approximation for degenerate parabolic equations [PDF]

open access: yesMethods and Applications of Analysis, 1999
The author considers the Cauchy problem for the parabolic equation \[ u_t+ \sum^d_{j= 0} (A_j(u))_{x_j}- \Delta(B(u))= G(u),\quad u(x,0)= u_0(x),\tag{1} \] where \(x\in \mathbb{R}^d\), \(u_0\in L^1(\mathbb{R}^d)\cap L^\infty(\mathbb{R}^d)\) and \(A_j\), \(B\) and \(C\) are smooth functions with \(B'(u)\geq 0\).
openaire   +3 more sources

Quasiconformal mappings and degenerate elliptic and parabolic equations

open access: yesLe Matematiche, 1987
In this paper two Harnak inequalities are proved concerning a degenerate elliptic and a degenerate parabolic equation. In both cases the weight giving the degeneracy is a power of the jacobian of a quasiconformal mapping.
Filippo Chiarenza   +1 more
doaj  

On a degenerate parabolic equation from double phase convection

open access: yesAdvances in Difference Equations, 2021
The initial-boundary value problem of a degenerate parabolic equation arising from double phase convection is considered. Let a ( x ) $a(x)$ and b ( x ) $b(x)$ be the diffusion coefficients corresponding to the double phase respectively.
Huashui Zhan
doaj   +1 more source

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   +1 more source

Global attractor for a semilinear parabolic equation involving Grushin operator

open access: yesElectronic Journal of Differential Equations, 2008
The aim of this paper is to prove the existence of a global attractor for a semilinear degenerate parabolic equation involving the Grushin operator.
Phan Quoc Hung   +3 more
doaj  

On Tricomi Problem of Chaplygin’s Hodograph Equation

open access: yesAbstract and Applied Analysis, 2015
The existence and uniqueness results for the Tricomi problem of Chaplygin’s hodograph equation are shown, in the case that the domain considered is close to the parabolic degenerate line, by adopting the energy integral methods and choosing judiciously ...
Meng Xu, Li Liu, Hairong Yuan
doaj   +1 more source

Existence of solutions for a degenerate seawater intrusion problem

open access: yesElectronic Journal of Differential Equations, 2005
We study a seawater intrusion problem in a confined aquifer. This process can be formulated as a coupled system of partial differential equations which includes an elliptic and a degenerate parabolic equation.
Mohamed El Alaoui Talibi   +1 more
doaj  

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