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DTSTART;TZID=Asia/Seoul:20210708T140000
DTEND;TZID=Asia/Seoul:20210708T150000
DTSTAMP:20260505T014140
CREATED:20210622T042954Z
LAST-MODIFIED:20210628T125100Z
UID:608-1625752800-1625756400@ccg.ibs.re.kr
SUMMARY:Yonghwa Cho\, Cohomology of Divisors on Burniat Surfaces
DESCRIPTION:     Speaker\n\n\nYonghwa Cho\nKIAS\n\n\n\n\n\n\nA (primary) Burniat surface is a complex surface of general type that can be obtained as a bidouble cover of del Pezzo surface with K2 = 6. The Picard group is an abelian group of rank 4 with torsion part isomorphic to (Z/2)6. Alexeev studied the divisors on Burniat surfaces\, and observed that the irreducible components of ramification divisors span the semigroup of effective divisors. Based on Alexeev’s result\, I will describe the method for computing cohomology of arbitrary divisors on Burniat surfaces. If time permits\, (non-)existence question about Ulrich bundles will be discussed as an application.
URL:https://ccg.ibs.re.kr/event/2021-07-08-1400/
LOCATION:B266\, IBS\, Korea\, Republic of
CATEGORIES:Complex Geometry Seminar
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