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X-WR-CALDESC:Events for Center for Complex Geometry
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BEGIN:VTIMEZONE
TZID:Asia/Seoul
BEGIN:STANDARD
TZOFFSETFROM:+0900
TZOFFSETTO:+0900
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DTSTART:20210101T000000
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BEGIN:VEVENT
DTSTART;VALUE=DATE:20220815
DTEND;VALUE=DATE:20230815
DTSTAMP:20260529T080900
CREATED:20220926T052830Z
LAST-MODIFIED:20230119T042344Z
UID:1755-1660521600-1692057599@ccg.ibs.re.kr
SUMMARY:Jinhyun Park (박진현\, KAIST)
DESCRIPTION:Jinhyun Park (박진현) \nVisitor (2022.8.15-2023.8.14) from KAIST\nOffice: B248
URL:https://ccg.ibs.re.kr/event/220815-230814/
CATEGORIES:Visitors
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Asia/Seoul:20221101T150000
DTEND;TZID=Asia/Seoul:20221101T160000
DTSTAMP:20260529T080900
CREATED:20221025T025538Z
LAST-MODIFIED:20221025T025538Z
UID:1842-1667314800-1667318400@ccg.ibs.re.kr
SUMMARY:Livia Campo\, Fano 3-folds and Equivariant Unprojections
DESCRIPTION:     Speaker\n\n\nLivia Campo\nKIAS\n\n\n\n\n\n\nThe classification of terminal Fano 3-folds has been tackled from different directions: for instance\, using the Minimal Model Program\, via explicit Birational Geometry\, and via Graded Rings methods. In this talk I would like to introduce the Graded Ring Database – an upper bound to the numerics of Fano 3-folds – and discuss the role it plays in the classification and construction of codimension 4 Fano 3-folds having Fano index 2.
URL:https://ccg.ibs.re.kr/event/2022-11-01-1500/
LOCATION:B266\, IBS\, Korea\, Republic of
CATEGORIES:Algebraic Geometry Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Asia/Seoul:20221101T163000
DTEND;TZID=Asia/Seoul:20221101T173000
DTSTAMP:20260529T080900
CREATED:20221025T025750Z
LAST-MODIFIED:20221025T025750Z
UID:1845-1667320200-1667323800@ccg.ibs.re.kr
SUMMARY:Junho Choe\, Constructions of Counterexamples to the Regularity Conjecture
DESCRIPTION:     Speaker\n\n\nJunho Choe\nKIAS\n\n\n\n\n\n\nCastelnuovo-Mumford regularity\, simply regularity\, is one of the most interesting invariants in projective algebraic geometry\, and the regularity conjecture due to Eisenbud and Goto says that the regularity can be controlled by the degree for any projective variety. But counterexamples to the conjecture have been constructed by some methods. In this talk we review the counterexample constructions including the Rees-like algebra method by McCullough and Peeva and the unprojection method.
URL:https://ccg.ibs.re.kr/event/2022-11-01-1630/
LOCATION:B266\, IBS\, Korea\, Republic of
CATEGORIES:Algebraic Geometry Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Asia/Seoul:20221115T110000
DTEND;TZID=Asia/Seoul:20221115T120000
DTSTAMP:20260529T080900
CREATED:20221128T014505Z
LAST-MODIFIED:20221128T014612Z
UID:1858-1668510000-1668513600@ccg.ibs.re.kr
SUMMARY:Joaquín Moraga\, Coregularity of Fano Varieties
DESCRIPTION:     Speaker\n\n\nJoaquín Moraga\nUCLA\n\n\n\n\n\n\nIn this talk\, we will introduce the absolute coregularity of Fano varieties. The coregularity measures the singularities of the anti-pluricanonical sections. Philosophically\, most Fano varieties have coregularity 0. In the talk\, we will explain some theorems that support this philosophy. We will show that a Fano variety of coregularity 0 admits a non-trivial section in |-2KX|\, independently of the dimension of X. This is joint work with Fernando Figueroa\, Stefano Filipazzo\, and Junyao Peng.
URL:https://ccg.ibs.re.kr/event/2022-11-15/
LOCATION:on-line
CATEGORIES:Algebraic Geometry Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Asia/Seoul:20221129T170000
DTEND;TZID=Asia/Seoul:20221129T180000
DTSTAMP:20260529T080900
CREATED:20221128T014815Z
LAST-MODIFIED:20221128T015115Z
UID:1875-1669741200-1669744800@ccg.ibs.re.kr
SUMMARY:Andrea Petracci\, A 1-dimensional Component of K-moduli of Del Pezzo Surfaces
DESCRIPTION:     Speaker\n\n\nAndrea Petracci\nUniversità di Bologna\n\n\n\n\n\n\nFano varieties are algebraic varieties with positive curvature; they are basic building blocks of algebraic varieties. Great progress has been recently made by Xu et al. to construct moduli spaces of Fano varieties by using K-stability (which is related to the existence of Kähler-Einstein metrics). These moduli spaces are called K-moduli. \nIn this talk I will explain how to easily deduce some geometric properties of K-moduli by using toric geometry and deformation theory. In particular\, I will show how to construct a 1-dimensional component of K-moduli which parametrises certain K-polystable del Pezzo surfaces.
URL:https://ccg.ibs.re.kr/event/2022-11-29/
LOCATION:on-line
CATEGORIES:Algebraic Geometry Seminar
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