Łukasz Mazurkiewicz: Ideal analytic sets
17/01/23 09:14
Tuesday, January 17, 2023 17:00
Location: room C11-3.11
Speaker: Łukasz Mazurkiewicz
Title: Ideal analytic sets
Abstract: We will consider examples of analytic sets which are not Borel. We will focus on, so called, complete analytic sets. Firstly, we will consider ideals on naturals (naturally treated as subsets of the Cantor space). Secondly, we will consider the family of Silver trees. We will compare the later example with theorem of Kechris-Louveau-Woodin.
Location: room C11-3.11
Speaker: Łukasz Mazurkiewicz
Title: Ideal analytic sets
Abstract: We will consider examples of analytic sets which are not Borel. We will focus on, so called, complete analytic sets. Firstly, we will consider ideals on naturals (naturally treated as subsets of the Cantor space). Secondly, we will consider the family of Silver trees. We will compare the later example with theorem of Kechris-Louveau-Woodin.