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An oscillation free local discontinuous Galerkin method for nonlinear degenerate parabolic equations [PDF]

open access: yesNumerical Methods for Partial Differential Equations, 2021
An oscillation free local discontinuous Galerkin (OFLDG) method is proposed for solving nonlinear degenerate parabolic equations. The damping terms are added to the original LDG scheme to control the spurious oscillations when solutions have a large ...
Q. Tao   +3 more
semanticscholar   +1 more source

On Two Coupled Degenerate Parabolic Equations Motivated by Thermodynamics [PDF]

open access: yesJournal of nonlinear science, 2021
We discuss a system of two coupled parabolic equations that have degenerate diffusion constants depending on the energy-like variable. The dissipation of the velocity-like variable is fed as a source term into the energy equation leading to conservation ...
A. Mielke
semanticscholar   +1 more source

Existence results for some nonlinear parabolic equations with degenerate coercivity and singular lower-order terms [PDF]

open access: yesMathematica Bohemica, 2023
In this paper, we study the existence results for some parabolic equations with degenerate coercivity, singular lower order term depending on the gradient, and positive initial data in $L^1$.
Rabah Mecheter, Fares Mokhtari
doaj   +1 more source

Null controllability of strongly degenerate parabolic equations                                                          

open access: yesE S A I M: Control, Optimisation and Calculus of Variations, 2023
We consider linear one-dimensional strongly degenerate parabolic equations with measurable coefficients that may be degenerate or singular. Taking 0 as the point where the strong degeneracy occurs, we assume that the coefficient a = a(x) in the principal
L. Rosier, Antoine Benoit, R. Loyer
semanticscholar   +1 more source

Classification of nonnegative traveling wave solutions for the 1D degenerate parabolic equations

open access: yesDiscrete and Continuous Dynamical Systems - B, 2022
Traveling wave solutions for the one-dimensional degenerate parabolic equations are considered. The purpose of this paper is to classify the nonnegative traveling wave solutions including sense of weak solutions of these equations and to present their ...
Yutaka Ichida
semanticscholar   +1 more source

WENO schemes for multidimensional nonlinear degenerate parabolic PDEs [PDF]

open access: yesIranian Journal of Numerical Analysis and Optimization, 2018
In this paper, a scheme is presented for approximating solutions of non linear degenerate parabolic equations which may contain discontinuous solutions.
R. Abedian
doaj   +1 more source

Trace formulae of potentials for degenerate parabolic equations [PDF]

open access: yesDifferential and Integral Equations, 2020
In this paper, we analyze main properties of the volume and layer potentials as well as the Poisson integral for a multi-dimensional degenerate parabolic equation.
Mukhtar Karazym, D. Suragan
semanticscholar   +1 more source

Uniqueness for degenerate parabolic equations in weighted $$L^1$$ spaces [PDF]

open access: yesJournal of evolution equations (Printed ed.), 2020
We study uniqueness of solutions to degenerate parabolic problems, posed in bounded domains, where no boundary conditions are imposed. Under suitable assumptions on the operator, uniqueness is obtained for solutions that satisfy an appropriate integral ...
Camilla Nobili, F. Punzo
semanticscholar   +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

Nonnegative controllability for a class of nonlinear degenerate parabolic equations with application to climate science [PDF]

open access: yesElectronic Journal of Differential Equations, 2020
We consider a nonlinear degenerate reaction-diffusion equation. First we prove that if the initial state is nonnegative, then the solution remains nonnegative for all time.
Giuseppe Floridia
semanticscholar   +1 more source

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