Seminar 04.15.21 Moreira

Title: Multiplicative recurrence with additive averaging

Speaker: Joel Moreira РUniversity  of Warwick

Abstract: Motivated by the question of whether Pythagorean triples are partition regular, one is naturally led to study sets of recurrence in the semigroup of natural numbers under multiplication. However, for sets with “additive structure”, the usual tools (such as the van der Corput trick) don’t seem to be useful in this context. As an alternative, we propose to study sets of averaging recurrence, where the averaging is taken additively. We present some results in this direction, and some applications to number theory. This is based on joint work with Sebastian Donoso, Anh Le and Wenbo Sun.

Zoom link: https://osu.zoom.us/j/98033590349

Meeting ID: 980 3359 0349

Password: Mixing

Recorded Talk: https://osu.zoom.us/rec/play/J1MkxyEaOGUHGcdGM84cNOQXt7thTW47Im6oWulA6EIbn4c5tpI0vGFW1eR7u_vDHqpnpLQCKVQso5SK.86O6eYU5IyOTjLxX?continueMode=true