Existence of Weak Solutions to a Class of Elliptic Stochastic
Partial Differential Equations
Acta mathematica scientia,Series A
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Ran Qikang
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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 authorsintroduce the concept of the weak solution, then the authors transform the stochastic problem into a deterministicone 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
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Ran Qikang.
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http://actams.apm.ac.cn/sxwlxbA/EN/Y2008/V28/I2/320
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