Results 21 to 30 of about 40,833 (232)

Large time behavior for some nonlinear degenerate parabolic equations [PDF]

open access: yes, 2013
We study the asymptotic behavior of Lipschitz continuous solutions of nonlinear degenerate parabolic equations in the periodic setting. Our results apply to a large class of Hamilton-Jacobi-Bellman equations.
Ley, Olivier, Nguyen, Vinh Duc
core   +2 more sources

Null controllability of degenerate parabolic equation with memory [PDF]

open access: yesMathematical Methods in the Applied Sciences, 2021
In this paper, we analyze the null controllability property for a degenerate parabolic equation involving memory terms with a locally distributed control. We first derive a null controllability result for a nonhomogeneous degenerate heat equation via new Carleman estimates with weighted time functions that do not blow up at .
Allal, Brahim, Fragnelli, Genni
openaire   +5 more sources

Identification problems for degenerate parabolic equations [PDF]

open access: yesApplications of Mathematics, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Awawdeh, Fadi, Obiedat, Hamed M.
openaire   +1 more source

On the local integrability and boundedness of solutions to quasilinear parabolic systems

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2004
We introduce a structure condition of parabolic type, which allows for the generalization to quasilinear parabolic systems of the known results of integrability, and boundedness of local solutions to singular and degenerate quasilinear parabolic ...
T. Giorgi, M. O'Leary
doaj   +1 more source

Wellposedness of a nonlocal nonlinear diffusion equation of image processing [PDF]

open access: yes, 2016
Existence and uniqueness are established for a degenerate regularization of the well-known Perona-Malik equation proposed by the first author for non-smooth initial data.
Guidotti, Patrick, Shao, Yuanzhen
core   +2 more sources

Convergence for Degenerate Parabolic Equations

open access: yesJournal of Differential Equations, 1999
The authors consider degenerate parabolic problems of the form \[ \begin{aligned} u_t-\varphi \bigl(u(x,t) \bigr)_{xx}= f\bigl(u(x,t) \bigr),\quad & x\in (-L,L),\;t>0,\\ u(-L,t)= u(L,t)=0, \quad & t>0,\\ u(x,0)= u_0(t)\geq 0,\quad & x\in (-L,L), \end{aligned} \] where \(\varphi\) and \(f\) are sufficiently regular functions satisfying \(\varphi(0)=0\),
Feireisl, Eduard, Simondon, Frédérique
openaire   +2 more sources

Discontinuous “viscosity” solutions of a degenerate parabolic equation [PDF]

open access: yesTransactions of the American Mathematical Society, 1990
We study a nonlinear degenerate parabolic equation of the second order. Regularizing the equation by adding some artificial viscosity, we construct a generalized solution. We show that this solution is not necessarily continuous at all points.
BERTSCH, MICHIEL, Dal Passo R, Ughi, M.
openaire   +3 more sources

Convergence of Inverse Volatility Problem Based on Degenerate Parabolic Equation

open access: yesMathematics, 2022
Based on the theoretical framework of the Black–Scholes model, the convergence of the inverse volatility problem based on the degenerate parabolic equation is studied.
Yilihamujiang Yimamu, Zuicha Deng
doaj   +1 more source

Carleman inequality for a class of super strong degenerate parabolic operators and applications

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2023
In this paper, we present a new Carleman estimate for the adjoint equations associated to a class of super strong degenerate parabolic linear problems. Our approach considers a standard geometric imposition on the control domain, which can not be removed
Bruno Sérgio Araújo   +2 more
doaj   +1 more source

Interior degenerate/singular parabolic equations in nondivergence form: well-posedness and Carleman estimates [PDF]

open access: yes, 2015
We consider non smooth general degenerate/singular parabolic equations in non divergence form with degeneracy and singularity occurring in the interior of the spatial domain, in presence of Dirichlet or Neumann boundary conditions.
Alabau-Boussouira   +30 more
core   +2 more sources

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