Place: Fields Institute (Room 210)

Date: December 9, 2016 (13:30-15:00)

Speaker: Dilip Raghavan

Title: A long chain of P-points

Abstract: We show under MA that there is a chain of P-points of length ${\mathfrak{c}}^{+}$ under the Rudin-Keisler order. This answers an old question of Blass. The paper can be found at https://arxiv.org/abs/1607.07188. This is joint work with Borisa Kuzeljevic.