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Hironori Sakai 
2010-03-23 
11:30 - 12:30 
308 , Mathematics Research Center Building (ori. New Math. Bldg.)

Larman and Malkin give a description of a symplectic structure on a Deligne-Mumford stack with a non-etale atlas. In this talk we describe noneffective symplectic toric orbifolds in terms of stacks. We also discuss their labelled moment polytopes.