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Graduate Seminar

Chris Lambie-Hanson
Carnegie Mellon University
Title: The Wonderful World of Singular Cardinals

Abstract: The cardinal numbers divide into two very different classes: regular cardinals and singular cardinals. Cardinal arithmetic involving regular cardinals is in a certain sense completely understood and subject only to a few simple rules. Cardinal arithmetic involving singular cardinals, on the other hand, is a rich, fascinating, and still imperfectly-understood subject, still yielding surprises to this day. In this talk, I will introduce some of the basic facts about singular cardinals and survey some of the most important recent developments in cardinal arithmetic, taking short detours through Heidelberg in 1904 and Moscow in the 1920s.

Date: Thursday, September 5, 2013
Time: 5:30 pm
Location: Wean Hall 8220
Submitted by:  Brian Kell