Results 31 to 40 of about 2,307 (91)

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

Galerkin approximation and the strong solution of the Navier‐Stokes equation

open access: yesInternational Journal of Stochastic Analysis, Volume 13, Issue 3, Page 239-259, 2000., 2000
We consider a stochastic equation of Navier‐Stokes type containing a noise part given by a stochastic integral with respect to a Wiener process. The purpose of this paper is to approximate the solution of this nonlinear equation by the Galerkin method. We prove the convergence in mean square.
Hannelore Breckner
wiley   +1 more source

PARACONTROLLED DISTRIBUTIONS AND SINGULAR PDES

open access: yesForum of Mathematics, Pi, 2015
We introduce an approach to study certain singular partial differential equations (PDEs) which is based on techniques from paradifferential calculus and on ideas from the theory of controlled rough paths.
MASSIMILIANO GUBINELLI   +2 more
doaj   +1 more source

Periodic in distribution solution for a telegraph equation

open access: yesInternational Journal of Stochastic Analysis, Volume 12, Issue 2, Page 121-131, 1999., 1998
In this paper we study an abstract stochastic equation of second order and stochastic boundary problem for the telegraph equation in a strip. We prove the existence of solutions, which are d‐periodic (periodic in distribution) random processes.
A. Ya. Dorogovtsev
wiley   +1 more source

A non‐nonstandard proof of Reimers′ existence result for heat SPDEs

open access: yesInternational Journal of Stochastic Analysis, Volume 11, Issue 1, Page 29-41, 1998., 1997
In 1989, Reimers gave a nonstandard proof of the existence of a solution to heat SPDEs, driven by space‐time white noise, when the diffusion coefficient is continuous and satisfies a linear growth condition. Using the martingale problem approach, we give a non‐nonstandard proof of this fact, and with the aid of Girsanov′s theorem for continuous ...
Hassan Allouba
wiley   +1 more source

A CLASS OF GROWTH MODELS RESCALING TO KPZ

open access: yesForum of Mathematics, Pi, 2018
We consider a large class of $1+1$-dimensional continuous interface growth models and we show that, in both the weakly asymmetric and the intermediate disorder regimes, these models converge to Hopf–Cole solutions to the KPZ equation.
MARTIN HAIRER, JEREMY QUASTEL
doaj   +1 more source

A comparison theorem for backward SPDEs with jumps

open access: yes, 2014
In this paper we obtain a comparison theorem for backward stochastic partial differential equation (SPDEs) with jumps. We apply it to introduce space-dependent convex risk measures as a model for risk in large systems of interacting ...
Sulem, Agnès   +2 more
core   +2 more sources

Stability of stationary and periodic solutions equations in Banach space

open access: yesInternational Journal of Stochastic Analysis, Volume 10, Issue 3, Page 249-255, 1997., 1997
Linear difference and differential equations with operator coefficients and random stationary (periodic) input are considered. Conditions are presented for the mean stability of stationary (periodic) solutions under small perturbation of the coefficients.
A. Ya. Dorogovtsev
wiley   +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  

On the (strict) positivity of solutions of the stochastic heat equation

open access: yes, 2014
We give a new proof of the fact that the solutions of the stochastic heat equation, started with non-negative initial conditions, are strictly positive at positive times. The proof uses concentration of measure arguments for discrete directed polymers in
Flores, Gregorio R. Moreno
core   +1 more source

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