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Published in 2021 at "Acta Mathematica Vietnamica"
DOI: 10.1007/s40306-021-00424-3
Abstract: We prove the existence of pullback attractors in various spaces for the following non-autonomous quasilinear degenerate parabolic equations involving weighted p -Laplacian operators on ℝ N $\mathbb {R}^{N}$ ∂ u ∂ t − div (…
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Keywords:
autonomous quasilinear;
non autonomous;
parabolic equations;
degenerate parabolic ... See more keywords
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Published in 2017 at "International Journal of Applied and Computational Mathematics"
DOI: 10.1007/s40819-017-0380-y
Abstract: This article studies the numerical solution of singularly perturbed degenerate parabolic convection–diffusion problem on a rectangular domain. The solution of this problem exhibits a boundary layer in the neighborhood of left boundary of the domain.…
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Keywords:
singularly perturbed;
direction;
richardson extrapolation;
perturbed degenerate ... See more keywords
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Published in 2017 at "Journal of Differential Equations"
DOI: 10.1016/j.jde.2017.07.029
Abstract: Abstract We consider nonnegative solutions of degenerate parabolic equations with a singular absorption term and a source nonlinear term: ∂ t u − ( | u x | p − 2 u x ) x…
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Keywords:
existence;
equations singular;
source;
parabolic equations ... See more keywords
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Published in 2017 at "Journal of Functional Analysis"
DOI: 10.1016/j.jfa.2016.12.023
Abstract: Abstract In this paper we deal with the Cauchy problem associated to a class of nonlinear degenerate parabolic equations, whose prototype is the parabolic p -Laplacian ( 2 p ∞ ). In his seminal paper,…
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Keywords:
kernel estimates;
moser nash;
estimates degenerate;
parabolic equations ... See more keywords
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Published in 2019 at "Journal of Mathematical Analysis and Applications"
DOI: 10.1016/j.jmaa.2019.02.056
Abstract: Abstract Nonlinear parabolic equations of “divergence form,” u t = ( φ ( u ) ψ ( u x ) ) x , are considered under the assumption that the “material flux,” φ ( u…
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Keywords:
solvability strongly;
problem;
strongly degenerate;
value ... See more keywords
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Published in 2018 at "Applicable Analysis"
DOI: 10.1080/00036811.2018.1544622
Abstract: ABSTRACT This article is devoted to prove the existence of a non-negative solution for a degenerate parabolic strongly coupled system which arises from seawater intrusion model in confined aquifers. An approximate linear discretized in time…
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Keywords:
system;
seawater intrusion;
global weak;
confined aquifers ... See more keywords
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Published in 2020 at "Stochastics and Dynamics"
DOI: 10.1142/s0219493721500337
Abstract: The Wong–Zakai approximations given by a stationary process and attractors for stochastic degenerate parabolic equations are considered in this paper. We first establish the existence and uniqueness of tempered pullback attractors for the Wong–Zakai approximations…
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Keywords:
stochastic degenerate;
zakai approximations;
parabolic equations;
wong zakai ... See more keywords
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Published in 2019 at "Journal of Function Spaces"
DOI: 10.1155/2019/9040284
Abstract: For a nonlinear degenerate parabolic equation, how to impose a suitable boundary value condition to ensure the well-posedness of weak solutions is a very important problem. It is well known that the classical Fichera-Oleinik theory…
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Keywords:
weak characteristic;
parabolic equation;
method;
degenerate parabolic ... See more keywords
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Published in 2019 at "Boundary Value Problems"
DOI: 10.1186/s13661-019-1285-y
Abstract: AbstractIn this paper, we study the degenerate parabolic system uti+Xα∗(aijαβ(z)Xβuj)=gi(z,u,Xu)+Xα∗fiα(z,u,Xu),$$ u_{t}^{i} + X_{\alpha }^{*} \bigl(a_{ij}^{\alpha \beta }(z){X_{\beta }} {u^{j}}\bigr) = {g_{i}}(z,u,Xu) + X_{\alpha }^{*} f_{i}^{\alpha }(z,u,Xu), $$ where X={X1,…,Xm}$X=\{X_{1},\ldots,X_{m} \}$ is a system of smooth…
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Keywords:
parabolic system;
system;
weak solutions;
degenerate parabolic ... See more keywords
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Published in 2020 at "Boundary Value Problems"
DOI: 10.1186/s13661-020-01364-x
Abstract: A degenerate parabolic equation of the form ( | v | β − 1 v ) t = div ( b ( x , t ) | ∇ v | p ( x , t…
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Keywords:
parabolic equation;
nonnegative weak;
degenerate;
vert ... See more keywords
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Published in 2022 at "Symmetry"
DOI: 10.3390/sym14061255
Abstract: The authors of this text study weak solutions to the variational inequalities with degenerate parabolic operators and symmetric structure in Sobolev spaces with variable exponent. The existence and uniqueness of the solutions are treated by…
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Keywords:
study weak;
variational inequalities;
weak solutions;
variable exponent ... See more keywords