Algebra Seminar talk

Otmar Spinas (Universität Kiel)
Tukey reductions

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 KGRC (Währinger Straße 25) will take place already on Thursday May 19 at 16:00.