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APRG Seminar

Title: Multi-parameter structures on $R^n$ and nilpotent groups
Speaker: Fulvio Ricci (SNS Pisa, Italy)
Date: 21 April 2021
Time: 4 pm
Venue: Microsoft Teams (online)

In this talk we give a survey on a certain number of multi-parameter structures, on $\mathbb{R}^n$ and on nilpotent groups, that have first appeared in joint work of mine with A. Nagel, E. Stein and S. Wainger. They include flag and multi-norm structures.

These structures are intermediate between the one-parameter dilation structures of standard Calderón-Zygmund theory and the full n-parameter product structure. Each structure has its own type of maximal functions, singular integral operators, square functions, Hardy spaces.

Contact: +91 (80) 2293 2711, +91 (80) 2293 2265 ;     E-mail: chair.math[at]iisc[dot]ac[dot]in
Last updated: 14 Jul 2024