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比利时vs摩洛哥足彩
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比利时vs摩洛哥足彩
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university of california san diego
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algebraic geometry seminar
alexander perry
columbia university
deformation and derived equivalent but non-birational calabi-yau threefolds
abstract:
i will construct a pair of calabi-yau threefolds which are deformation and derived equivalent, but not birationally equivalent. i will explain how this gives a counterexample to the birational torelli problem for calabi-yau threefolds, as well as new examples of zero divisors in the grothendieck ring of varieties. this is joint work with lev borisov and andrei caldararu.
host: david stapleton
may 25, 2018
2:30 pm
ap&m 5829
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