Results 11 to 20 of about 119,303 (372)

Degenerate semilinear parabolic equations [PDF]

open access: bronzeDifferential and Integral Equations, 1992
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Andreas Stahel
openalex   +4 more sources

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 non-degeneracy 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 Mitrović
openaire   +6 more sources

Carleman estimates for a stochastic degenerate parabolic equation and applications to null controllability and an inverse random source problem [PDF]

open access: yesInverse Problems, 2019
In this paper, we establish two Carleman estimates for a stochastic degenerate parabolic equation. The first one is for the backward stochastic degenerate parabolic equation with singular weight function.
Bin Wu, Qun Chen, Zewen Wang
semanticscholar   +1 more source

Existence and cost of boundary controls for a degenerate/singular parabolic equation [PDF]

open access: yesMathematical Control and Related Fields, 2020
In this paper, we consider the following degenerate/singular parabolic equation $$ u_t -(x^\alpha u_{x})_x - \frac{\mu}{x^{2-\alpha}} u =0, \qquad x\in (0,1), \ t \in (0,T), $$ where $0\leq \alpha
U. Biccari   +2 more
semanticscholar   +1 more source

Saturated Fronts in Crowds Dynamics

open access: yesAdvanced Nonlinear Studies, 2021
We consider a degenerate scalar parabolic equation, in one spatial dimension, of flux-saturated type. The equation also contains a convective term. We study the existence and regularity of traveling-wave solutions; in particular we show that they can be ...
Campos Juan   +2 more
doaj   +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

On a viscous fourth-order parabolic equation with boundary degeneracy

open access: yesBoundary Value Problems, 2022
A viscous fourth-order parabolic equation with boundary degeneracy is studied. By using the variational method, the existence of a time-discrete fourth-order elliptic equation with homogeneous boundary conditions is solved.
Bo Liang   +4 more
doaj   +1 more source

L ∞ $L^{\infty }$ decay estimates of solutions of nonlinear parabolic equation

open access: yesBoundary Value Problems, 2021
In this paper, we are interested in L ∞ $L^{\infty }$ decay estimates of weak solutions for the doubly nonlinear parabolic equation and the degenerate evolution m-Laplacian equation not in the divergence form. By a modified Moser’s technique we obtain L ∞
Hui Wang, Caisheng Chen
doaj   +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

Regularity results for a class of widely degenerate parabolic equations [PDF]

open access: yesAdvances in Calculus of Variations, 2022
Motivated by applications to gas filtration problems, we study the regularity of weak solutions to the strongly degenerate parabolic PDE u t - div ⁡ ( ( | D ⁢ u | - ν ) + p - 1 ⁢ D ⁢ u | D ⁢ u | ) = f   in ⁢ Ω T = Ω × ( 0 , T ) , u_{t}-\operatorname{div}\
Pasquale Ambrosio   +1 more
semanticscholar   +1 more source

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