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Point evaluation in PaleyWiener spaces

Kristian Seip (Trondheim)

Salle de Conférences

le December 01, 2022 at 02:00 PM

We will look at the following problem on timefrequency localization: What is the norm of the point evaluation functional in the classical PaleyWiener LpL^p spaces for 0<p<0 < p <\infty? The central challenge in this problem is how to go beyond the power trick which allows you to relate an estimate for a given pp to that for kpkp for a positive integer kk. I will discuss some results and multiple conjectures around this problem. The talk is based on recent joint work with Ole Fredrik Brevig, Andrés Chirre, and Joaquim Ortega-Cerdà (see https://arxiv.org/abs/2210.13922).