Results 31 to 40 of about 2,363 (92)
On the stability of stationary solutions of a linear integro‐differential equation
In this paper the following two connected problems are discussed. The problem of the existence of a stationary solution for the abstract equation εx"(t)+x′(t)=Ax(t)+∫−∞tE(t−s)x(s)ds+ξ(t),t∈R containing a small parameter ε in Banach space B is considered. Here A ∈ ℒ(B) is a fixed operator, E ∈ C([0, +∞), ℒ(B)) and ξ is a stationary process.
A. Ya. Dorogovtsev, O. Yu. Trofimchuk
wiley +1 more source
Galerkin approximation and the strong solution of the Navier‐Stokes equation
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
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
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
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
Stability of stationary and periodic solutions equations in Banach space
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
A CLASS OF GROWTH MODELS RESCALING TO KPZ
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
Heat equation with a general stochastic measure on nested fractals
A stochastic heat equation on an unbounded nested fractal driven by a general stochastic measure is investigated. Existence, uniqueness and continuity of the mild solution are proved provided that the spectral dimension of the fractal is less than 4/3 ...
Radchenko, Vadym, Zähle, Martina
core +1 more source
Weak infinitesimal generator for a stochastic partial differential equation with time delay
In this paper, we consider the Markov solution process for a stochastic parabolic differential equation with time delay. Under the Lipschitz condition and boundedness on the drift and diffusion coefficient, properties of the weak infinitesimal generator of the associated Markov operators are established.
Mou-Hsiung Chang
wiley +1 more source
HIGH ORDER PARACONTROLLED CALCULUS
We develop in this work a general version of paracontrolled calculus that allows to treat analytically within this paradigm a whole class of singular partial differential equations with the same efficiency as regularity structures.
ISMAËL BAILLEUL, FRÉDÉRIC BERNICOT
doaj +1 more source

