02/22/2011 - 12:15pm

02/22/2011 - 1:10pm

Speaker:

Satyan Devadoss (Williams College)

Abstract:

We consider the moduli space of surfaces with boundary and marked points. Such spaces appear in algebraic geometry and topology, playing a strong role in holomorphic curves, open-closed string theory, and quantum cohomology. We consider a combinatorial framework to view the compactification of this space based on the pair-of-pants decomposition of the surface. This leads to a classification of all such spaces which can be realized as polytopes, capturing an elegant hidden algebraic structure.

Where:

Millikan 208 (Pomona College)

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