Kurt Gödel Research Center

2016 seminar talk: Tukey relations between the Mycielski and the meager and null ideals

Talk held by Otmar Spinas (Christian-Albrechts-Universität zu Kiel, Schleswig-Holstein, Germany) at the KGRC seminar on 2016-05-19.

Abstract

I have the two results that the meager ideal is Tukey reducible to the Mycielski ideal and that the Lebesgue null ideal consistently is not. In my talk at the KGRC I will explain the main ideas of the proof of the first one, in my Friday talk at the TU I will give some background of these results and some basic ideas of the proof of the second one, especially how to construct a Silver amoeba that does not add random reals.

Note: The talk at the Set Theory Group at TU Wien will take place at Wiedner Hauptstrasse 8-10, green area, 8th floor on 2016-05-20 at 1:00pm.