Iterated product sets with shifts

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• Oliver Roche-Newton (RICAM, Austria)
• Thursday 20 February 2020, 15:00-16:00
• Watson LTA.

If you have a question about this talk, please contact Richard Montgomery.

An important variant of the sum-product problem is the following: given a finite set A, show that either its product set is large, or any translate of A has large product set. I will discuss a joint work with Hanson and Zhelezov, in which we prove bounds for this problem with many variables in the rational setting. The proof is based on a deep work of Bourgain and Chang on the sum-product problem, although the analysis has thankfully now been greatly simplified owing to a new result of Palvolgyi and Zhelezov which gives powerful structural information about sets of rationals with small product sets.

This talk is part of the Combinatorics and Probability Seminar series.

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• Combinatorics and Probability Seminar
• School of Mathematics Events
• Watson LTA

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