Results 11 to 20 of about 39,676 (281)

Degenerate parabolic stochastic partial differential equations

open access: yesStochastic Processes and their Applications, 2013
Dans cette thèse, on considère des problèmes issus de l'analyse d'EDP stochastiques paraboliques non-dégénérées et dégénérées, de lois de conservation hyperboliques stochastiques, et d'EDS avec coefficients continus. Dans une première partie, on s'intéresse à des EDPS paraboliques dégénérées- on adapte les notions de formulation et de solutions ...
Martina Hofmanova
exaly   +6 more sources

Hölder gradient estimates for a class of singular or degenerate parabolic equations

open access: yesAdvances in Nonlinear Analysis, 2017
We prove interior Hölder estimates for the spatial gradients of the viscosity solutions to the singular or degenerate parabolic ...
Imbert Cyril   +2 more
doaj   +2 more sources

Convergence analysis of domain decomposition based time integrators for degenerate parabolic equations. [PDF]

open access: yesNumer Math (Heidelb), 2018
Domain decomposition based time integrators allow the usage of parallel and distributed hardware, making them well-suited for the temporal discretization of parabolic systems, in general, and degenerate parabolic problems, in particular.
Eisenmann M, Hansen E.
europepmc   +2 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

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

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

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

Gradient bounds for nonlinear degenerate parabolic equations and application to large time behavior of systems [PDF]

open access: yes, 2015
We obtain new oscillation and gradient bounds for the viscosity solutions of fully nonlinear degenerate elliptic equations where the Hamiltonian is a sum of a sublinear and a superlinear part in the sense of Barles and Souganidis (2001).
Ley, Olivier, Nguyen, Vinh Duc
core   +3 more sources

On some degenerate parabolic equations II [PDF]

open access: yesNagoya Mathematical Journal, 1973
In the article I: [8], we have proved the hypoellipticity of a degenerate parabolic equation of the form:where the coefficients a(x, t), b(x,t) and c(x, t) are complex valued smooth functions. The fundamental assumption on the coefficients is that Re a(x, t) satisfies the condition of Nirenberg and Treves ([8], (1.5)).
openaire   +6 more sources

Effective junction conditions for degenerate parabolic equations [PDF]

open access: yes, 2017
We are interested in the study of parabolic equations on a multi-dimensional junction, i.e. the union of a finite number of copies of a half-hyperplane of dimension d + 1 whose boundaries are identified. The common boundary is referred to as the junction
Imbert, Cyril, Nguyen, Vinh Duc
core   +2 more sources

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