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Paweł Duch (MPI MIS, Leipzig): Flow equation approach to singular stochastic PDEs

Ort: MPI für Mathematik in den Naturwissenschaften Leipzig, Inselstr. 22, E1 05 (Leibniz-Saal)

Vortrag in der Reihe: Arbeitsgemeinschaft ANGEWANDTE ANALYSIS I will present a new method of renormalizing singular stochastic PDEs based on the Wilson renormalization group theory and the Polchinski flow equation. The technique is applicable to a large class of semi-linear parabolic or elliptic SPDEs with fractional Laplacian, additive noise and polynomial non-linearity including equations arbitrarily close to criticality. A nice feature of the method is that it avoids the algebraic and combinatorial problems arising in different approaches.

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Beginn: Sept. 24, 2021, 11 a.m.

Ende: Sept. 24, 2021, 12:30 p.m.