On recent developments in multiple pointwise ergodic theory.

Thu Feb 10, 2022 4:15 p.m.—5:15 p.m.
Exterior of Sheffield-Sterling-Strathcona Hall featuring a stone carving of Yale's coat of arms and motto

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Seminar: 
Analysis

Event time: 
Thursday, February 10, 2022 - 4:15pm

Speaker: 
Mariusz Mirek

Speaker affiliation: 
Rutgers University

Event description: 
A celebrated theorem of Szemeredi asserts that every subset of integers with nonvanishing upper Banach density contains arbitrarily long arithmetic progressions. I will discuss the role of ergodic theory an Fourier analysis in this problem. I will also explain how this problem led to the conjecture of Furstenberg-Bergelson-Leibman, which is a major open problem in pointwise ergodic theory.

This will be a survey talk.