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Alan Sola: Singularities of rational inner functions in higher dimensions

Time: Thu 2023-06-08 10.15 - 11.15

Location: 3418, Lindstedtsvägen 25

Language: English

Participating: Alan Sola, Stockholms Universitet

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Reporting on joint work with K. Bickel and J.E. Pascoe, I will present results concerning the boundary behavior, level sets, and partial derivatives of rational inner functions in the tridisk, and in higher-dimensional polydisks. In contrast to their two-dimensional setting which is relatively well-understood, the geometry of RIFs in three or more variables exhibits many pathologies and surprising properties, some of which will be described in my talk.