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Graduate Seminar
Andy Zucker Carnegie Mellon University Title: Devlin's Theorem (finally!) Abstract: At long last comes the talk I promised you all last semester about Devlin's theorem. We will investigate various infinite Ramsey theorems where we demand some additional structure to be preserved. We will see exactly how complicated rcolorings of pairs of rational numbers can be, proving a theorem of Galvin. Finally, we will sketch out the ideas underlying Devlin's theorem about rcolorings of ktuples of rationals. Date: Thursday, January 22, 2015 Time: 5:30 pm Location: Wean Hall 8220 Submitted by: Zilin Jiang 