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Harvard-M.I.T. Algebraic Geometry Seminar}

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QUANTUM CHOW RINGS OF DELIGNE-MUMFORD STACKS
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{\bf 
TOM GRABER
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Harvard University

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I will discuss joint work with D.~Abramovich and A.~Vistoli in which
we use my coauthors' construction of a space of twisted stable maps to
give an algebro-geometric approach to Chen and Ruan's theory of
orbifold cohomology.


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April 23, 2002

3:00 p.m.

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MIT Room 4-163
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