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Friday, May 13, 2011

Algebraic Geometry
1:00 pm   in 343 Altgeld Hall,  Friday, May 13, 2011
 Del Edit Copy
Submitted by whaboush.
 Rahul Pandharipande (Princeton University Dept of math)The tautological ring of M_gAbstract: I will talk about an approach to the ring generated by kappa classes via the moduli space of stable quotients. The main new result (with A. Pixton) is a proof of a conjecture by Faber and Zagier of an elegant set of relations. Whether these are all of the relations is an interesting question. I will discuss the data on both sides.