Results 1 to 10 of about 1,004 (76)

Quasilinear parabolic stochastic partial differential equations: existence, uniqueness [PDF]

open access: yes, 2015
In this paper, we provide a direct approach to the existence and uniqueness of strong (in the probabilistic sense) and weak (in the PDE sense) solutions to quasilinear stochastic partial differential equations, which are neither monotone nor locally ...
Hofmanova, Martina, Zhang, Tusheng
core   +3 more sources

Density estimates on a parabolic spde [PDF]

open access: yes, 2002
We consider a general class of parabolic spde's [formula] with (t, x) [member of] [0, T]×[0, 1] and [epsilon]Wt,x, [epsilon] > 0, a perturbed Gaussian space-time white noise. For (t, x) [member of] (0, T]×(0, 1) we prove the called Davies and Varadhan-
Mellouk, M., Márquez-Carreras, D.
core   +3 more sources

A Random Change of Variables and Applications to the Stochastic Porous Medium Equation with Multiplicative Time Noise [PDF]

open access: yes, 2007
A change of variables is introduced to reduce certain nonlinear stochastic evolution equations with multiplicative noise to the corresponding deterministic equation.
Lototsky, S. V.
core   +3 more sources

Optimizing the Fractional Power in a Model with Stochastic PDE Constraints

open access: yesAdvanced Nonlinear Studies, 2018
We study an optimization problem with SPDE constraints, which has the peculiarity that the control parameter s is the s-th power of the diffusion operator in the state equation.
Geldhauser Carina, Valdinoci Enrico
doaj   +1 more source

A note on maximal estimates for stochastic convolutions [PDF]

open access: yes, 2010
In stochastic partial differential equations it is important to have pathwise regularity properties of stochastic convolutions. In this note we present a new sufficient condition for the pathwise continuity of stochastic convolutions in Banach spaces ...
A. Friedman   +32 more
core   +2 more sources

Invariant measures for monotone SPDE's with multiplicative noise term

open access: yes, 2012
We study diffusion processes corresponding to infinite dimensional semilinear stochastic differential equations with local Lipschitz drift term and an arbitrary Lipschitz diffusion coefficient.
Es-Sarhir, A.   +3 more
core   +1 more source

Solution theory of fractional SDEs in complete subcritical regimes

open access: yesForum of Mathematics, Sigma
We consider stochastic differential equations (SDEs) driven by a fractional Brownian motion with a drift coefficient that is allowed to be arbitrarily close to criticality in a scaling sense.
Lucio Galeati, Máté Gerencsér
doaj   +1 more source

Estimates for the ergodic measure and polynomial stability of plane stochastic curve shortening flow

open access: yes, 2010
We establish moment estimates for the invariant measure of a stochastic partial differential equation describing motion by mean curvature flow in (1+1) dimension, leading to polynomial stability of the associated Markov semigroup.
A. Es-Sarhir   +8 more
core   +1 more source

Linear-implicit strong schemes for Itô-Galkerin approximations of stochastic PDEs [PDF]

open access: yes, 2010
Linear-implicit versions of strong Taylor numerical schemes for finite dimensional Itô stochastic differential equations (SDEs) are shown to have the same order as the original scheme.
Kloeden, Peter E., Shott, Stephen
core  

Well-posedness of the stochastic transport equation with unbounded drift

open access: yes, 2017
The Cauchy problem for a multidimensional linear transport equation with unbounded drift is investigated. Provided the drift is Holder continuous , existence, uniqueness and strong stability of solutions are obtained.
Mollinedo, David A. C.   +1 more
core   +1 more source

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