Event Detail

Event Type: 
Analysis Seminar
Monday, March 10, 2014 - 05:00
Weniger 285

Speaker Info

Local Speaker: 

In a 1959 paper, Richard Kadison and I.M. Singer asked a question  about the  extreme points of a certain compact convex set in the set of bounded operators on l_2. Over time, many  conjectures in disparate areas were found to be equivalent. Last summer, a preprint was posted with a solution (positively vetted by some experts, though not yet published). I plan to give two talks about the result. The first will concentrate on the equivalent problems, the second on the main constructions in the proof.