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Positive Solutions of a Nonlinear Parabolic Partial Differential Equation [PDF]

open access: yesAbstract and Applied Analysis, 2014
We deal with the existence and uniqueness of positive solutions to a class of nonlinear parabolic partial differential equations, by using some fixed point theorems for mixed monotone operators with perturbation.
Chengbo Zhai, Shunyong Li
doaj   +4 more sources

Postprocessing for Stochastic Parabolic Partial Differential Equations [PDF]

open access: greenSIAM Journal on Numerical Analysis, 2007
We investigate the strong approximation of stochastic parabolic partial differential equations with additive noise. We introduce postprocessing in the context of a standard Galerkin approximation, although other spatial discretizations are possible. In time, we follow [G. J. Lord and J. Rougemont, IMA J. Numer. Anal., 24 (2004), pp. 587-604] and use an
Gabriel J. Lord, Tony Shardlow
openalex   +4 more sources

Minimal solutions to a class of parabolic partial differential equations [PDF]

open access: bronzeProceedings of the American Mathematical Society, 1969
2. Statement of the problem. Let T be a closed interval [to, t'] of the real line. Suppose Q is an open set in n-dimensional Euclidean space En and let i2 be a compact subset of R. Let 9j be the set of real-valued functions u(t, x) defined on TXQ and absolutely continuous on T for almost all x such that for some fixed integer k, the function u and all ...
T. Guinn, Edward M. Landesman
openalex   +3 more sources

Intermittence and nonlinear parabolic stochastic partial differential equations

open access: greenElectronic Journal of Probability, 2008
We consider nonlinear parabolic SPDEs of the form $\partial_t u=\sL u + (u)\dot w$, where $\dot w$ denotes space-time white noise, $ :\R\to\R$ is [globally] Lipschitz continuous, and $\sL$ is the $L^2$-generator of a L vy process. We present precise criteria for existence as well as uniqueness of solutions.
Mohammud Foondun, Davar Khoshnevisan
openalex   +6 more sources

Quasilinear Parabolic Equations Associated with Semilinear Parabolic Equations

open access: yesMathematics, 2023
We formulate a quasilinear parabolic equation describing the behavior of the global-in-time solution to a semilinear parabolic equation. We study this equation in accordance with the blow-up and quenching patterns of the solution to the original ...
Katsuyuki Ishii   +2 more
doaj   +1 more source

On Some Results of the Nonuniqueness of Solutions Obtained by the Feynman–Kac Formula

open access: yesMathematics, 2023
The Feynman–Kac formula establishes a link between parabolic partial differential equations and stochastic processes in the context of the Schrödinger equation in quantum mechanics.
Byoung Seon Choi, Moo Young Choi
doaj   +1 more source

Large deviations for stochastic Kuramoto–Sivashinsky equation with multiplicative noise

open access: yesNonlinear Analysis, 2021
The Kuramoto–Sivashinsky equation is a nonlinear parabolic partial differential equation, which describes the instability and turbulence of waves in chemical reactions and laminar flames. The aim of this work is to prove the large deviation principle for
Gregory Amali Paul Rose   +2 more
doaj   +1 more source

Solving linear parabolic rough partial differential equations [PDF]

open access: yesJournal of Mathematical Analysis and Applications, 2020
We study linear rough partial differential equations in the setting of [Friz and Hairer, Springer, 2014, Chapter 12]. More precisely, we consider a linear parabolic partial differential equation driven by a deterministic rough path W of Hölder regularity with .
John Schoenmakers   +5 more
openaire   +6 more sources

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