Oberseminar Geometrische Analysis​​

Geometrische Analysis

Nov 18 2025
14:00

Georg Hofstätter (TU Wien): Localization of valuations and Alesker’s irreducibility theorem

We introduce a new localization technique for translation-invariant valuations on
convex bodies. We then apply it to show that smooth, translation-invariant valua-
tions are representable by integration over the normal cycle. With this representa-
tion, we provide a new proof of Alesker’s famous irreducibility theorem.
This is joint work with J. Knoerr.