Two dimensional nonlinear Schrödinger equation with spatial white noise potential and fourth order nonlinearity

preprint2020arXivOpen access

Abstract

We consider NLS on $\T^2$ with multiplicative spatial white noise and nonlinearity between cubic and quartic. We prove global existence, uniqueness and convergence almost surely of solutions to a family of properly regularized and renormalized approximating equations. In particular we extend a previous result by A. Debussche and H. Weber available in the cubic and sub-cubic setting.

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