George Shakan

University of Oxford

[POSTPONED UNTIL FURTHER NOTICE] (An analytic approach to Sumsets)

Combinatorics Seminar

24th March 2020, 11:00 am – 12:00 pm
Fry Building, 2.04

[POSTPONED UNTIL FURTHER NOTICE] (Let U be a subset of Z^d. The quantity |U+U|/|U|, known as the doubling constant, has been extensively studied in additive combinatorics. We replace this with a more complicated notion which enjoys a certain tensorisation property. As a result we obtain a new method for studying high dimensional sumsets analogous to the Prékopa-Leindler inequality. We outline some of the main results, key ideas and applications. This is joint work with Dávid Matolcsi, Imre Ruzsa and Dmitry Zhelezov.)

Organisers: David Ellis, Tom Johnston

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