Subscribe to Events

Download as iCal file

Complex Analysis and Geometry Seminar

Recent results on sparse domination

Andreas Seeger (U. Wisconsin-Madison)

Location:  Hill Center Room 705
Date & time: Friday, 05 May 2023 at 10:30AM - 11:30AM

Abstract:

The concept of sparse domination was first introduced for singular integral operators and then extended to many other operators in harmonic analysis. I will discuss a general sparse domination principle that applies to large classes of operators  beyond the Calderón--Zygmund theory, but usually does not cover endpoint cases.  There are several new results in this direction, covering for example classical oscillatory multipliers and Bochner-Riesz means at the critical index.

This is joint work with David Beltran and Joris Roos.