Correo Interno

The fractional Serrin problem

Ponente: Sven Jarohs
Institución: Universität Frankfurt am Main
Tipo de Evento: Investigación
Cuándo 18/03/2020
de 12:00 a 13:00
Dónde Salón de seminarios Graciela Salicrup
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The classical overdetermined problem, studied by Serrin, states that the torsion function to a smooth domain has a constant normal derivative if and only if the underlying domain is a ball. In this talk, I present a natural extension of this setting to the case where the Laplacian is replaced by the fractional Laplacian, a nonlocal operator. This leads to some new perspectives on this problem which only hold due the nonlocal nature of this operator. After a short introduction to the problem and the fractional Laplacian, I will give proof ideas to the main tools and give some extensions of the statement to more general nonlocal operators and right-hand sides.

The talk is based on a joined work with Mouhamed Moustapha Fall.