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Department of Mathematics,
Department of Mathematics,
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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