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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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math 208 - algebraic geometry seminar
jeongseok oh
korea institute for advanced study
counting sheaves on calabi-yau 4-folds
abstract:
we define a localised euler class for isotropic sections, and isotropic cones, in so(n) bundles. we use this to give an algebraic definition of borisov-joyce sheaf counting invariants on calabi-yau 4-folds. when a torus acts, we prove a localisation result. this talk is based on the joint work with richard. p. thomas.
host: michail savvas
november 6, 2020
3:30 pm
contact david stapleton, dstapleton@ucsd.edu, for zoom info.
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