Acta mathematica scientia,Series A

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Existence of Weak Solutions to a Class of Elliptic Stochastic

Partial Differential Equations

Ran Qikang   

  1. Department of Applied Mathematics, Shanghai University of Finance and Economics,Shanghai 200433
  • Received:2006-06-18 Revised:2007-07-17 Online:2008-04-25 Published:2008-04-25
  • Contact: Ran Qikang

Abstract: In this paper the authors study of following problem: Let $D$ be a bounded open set of $R^N(N>1)$ and
$(\Omega,F,P)$ is a probability space. The authors study the existence of weak solutions of the
following stochastic boundary value problem:
$$
\left\{
\begin{array}{ll}
-{\rm div} A(x,\omega,u, \nabla u)=f(x,\omega, u),\,\, &(x,\omega)\in D\times \Omega,\\
u=0, &(x,\omega)\in \partial D\times \Omega,
\end{array}\right.
$$
where by div and $\nabla$ the authors denote differentiation with respect to $x$ only. First, the authors
introduce the concept of the weak solution, then the authors transform the stochastic problem into a deterministic
one in high-dimensions. Finally, the authors prove the existence of weak solutions.

Key words: Nonlinear elliptic stochastic partial differential equations, Weak solutions,
Leray-Schauder continuation method

CLC Number: 

  • 35J65
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