Louise Hay Logic Seminar
Sam Ziegler
UIC
The $S_{\infty}$-universality of countable graphs
Abstract: In this talk, we prove that the logic action of $S_{\infty}$ on the space of countable
graphs is universal, in the sense that any $S_{\infty}$ orbit equivalence relation Borel
reduces to the orbit equivalence relation on graphs.
Thursday October 18, 2012 at 3:00 PM in SEO 427