Place: Fields Institute (Room 210)
Date: November 17, 2017 (13:30-15:00)
Speaker: Osvaldo Guzman Gonzalez
Title: The Shelah-Steprans property of ideals
Abstract: An ideal I has the Shelah-Steprans property if for every set X of finite sets, there is an element of I that either intersects every element of X or contains infinitely many elements of X. We will give a characterization of the Borel Shelah-Steprans ideals in terms of the Katetov order and we will see some applications in the destructibility of MAD families.