Place: Fields Institute (Room 210)
Date: January 12, 2018 (13:30-15:00)
Speaker: Osvaldo Guzman Gonzalez
Title: On (1,w_1)-weakly universal functions
Abstract: We will study a very weak notion of universality of functions in Sacks models. We will answer a question of Shelah and Steprans by showing that there are no (1,w_1)-weakly universal functions after adding uncountably many Sacks reals side by side.