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Ehrhart series and lattice triangulations

Algebra & Discrete Mathematics

Speaker: Sam Payne, Stanford
Location: 1147 MSB
Start time: Fri, Dec 8 2006, 12:10PM

I will discuss combinatorial formulas for counting lattice points in polytopes using lattice triangulations. These formulas are inspired by calculations from stringy algebraic geometry, and lead to examples of reflexive polytopes whose Ehrhart series have unexpected properties.