Andrzej Rosłanowski: Borel sets without perfectly many overlapping translations
25/11/20 11:05
Tuesday, December 1, 2020 17:00
Location: Zoom.us: if you want to participate please contact organizers
Speaker: Andrzej Rosłanowski (University of Nebraska Omaha)
Title: Borel sets without perfectly many overlapping translations
Abstract: For a perfect Abelian Polish group H we force a Borel set B which has many translations with pairwise intersections of size at least k, but does not have a perfect set of such translations. This is joint work with Saharon Shelah.
Location: Zoom.us: if you want to participate please contact organizers
Speaker: Andrzej Rosłanowski (University of Nebraska Omaha)
Title: Borel sets without perfectly many overlapping translations
Abstract: For a perfect Abelian Polish group H we force a Borel set B which has many translations with pairwise intersections of size at least k, but does not have a perfect set of such translations. This is joint work with Saharon Shelah.