Science & Technology

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's 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.

10月28日
3:15pm - 4:15pm
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地点
https://hkust.zoom.us/j/9584764665 (Passcode: dt4fold)
讲者/表演者
Dr. Jeongseok OH
Korea Institute for Advanced Study (KIAS)
主办单位
Department of Mathematics
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对象
Alumni, Faculty and staff, PG students, UG students
语言
英语
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