论文部分内容阅读
This paper is concerned with effects of noise on the solutions of partial differential equations.We first provide a sufficient condition to ensure the existence of a unique positive solution for a class of stochastic partial differential equations.Then,we prove that noise could induce singularities(finite time blow up of solutions).Finally,we show that a stochastic Allen-Cahn equation does not have finite time singularities and the unique solution exists globally.