Pre-lecture for Autumn Operator Algebras Program (Lecture 2) The topological index
	
		Valerio Proietti  (ECNU)	
	
		10:00-11:00, Oct 20, 2020   Zoom  467 658 1686	
Abstract:
	 We'll define the topological index appearing on the right-hand side of the Atiyah-Singer index theorem by using K-theory, and explain how to derive from this the cohomological formula for the index involving characteristic classes.
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