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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
yalong cao
ipmu
gopakumar-vafa type invariants for calabi-yau 4-folds
abstract:
gopakumar-vafa type invariants on calabi-yau 4-folds (which are non-trivial only for genus zero and one) are defined by klemm-pandharipande from gromov-witten theory, and their integrality is conjectured. in this talk, i will explain how to give a sheaf theoretical interpretation of them using counting invariants on moduli spaces of one dimensional stable sheaves. \\ \\ based on joint works with d. maulik and y. toda.
host: dragos oprea
january 22, 2021
3:00 pm
contact david stapleton, dstapleton@ucsd.edu, for zoom access
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