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Non-monotone stochastic generalized porous media equations
Authors:Michael Rö  ckner,Feng-Yu Wang
Affiliation:a Department of Mathematics and BiBoS, Bielefeld University, Bielefeld, Germany
b Departments of Mathematics and Statistics, Purdue University, West Lafayette, USA
c School of Mathematical Sciences & Lab. Math. Com. Sys., Beijing Normal University, Beijing 100875, China
d Department of Mathematics, Swansea University, Singleton Park, SA2 8PP, Swansea, UK
Abstract:By using the Nash inequality and a monotonicity approximation argument, existence and uniqueness of strong solutions are proved for a class of non-monotone stochastic generalized porous media equations. Moreover, we prove for a large class of stochastic PDE that the solutions stay in the smaller L2-space provided the initial value does, so that some recent results in the literature are considerably strengthened.
Keywords:76S05   60H15
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