Renormalization of the two-dimensional stochastic nonlinear wave equations

Abstract

We study the two-dimensional stochastic nonlinear wave equations (SNLW) with an additive space-time white noise forcing. In particular, we introduce a time-dependent renor- malization and prove that SNLW is pathwise locally well-posed. As an application of the local well-posedness argument, we also establish a weak universality result for the renormalized SNLW.

24 pages, Typos corrected. To appear in Trans. Amer. Math. Soc

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