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X-WR-CALDESC:Events for Center for Complex Geometry
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TZID:Asia/Seoul
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TZOFFSETFROM:+0900
TZOFFSETTO:+0900
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DTSTART:20240101T000000
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BEGIN:VEVENT
DTSTART;VALUE=DATE:20250301
DTEND;VALUE=DATE:20260216
DTSTAMP:20260415T152454
CREATED:20250304T080834Z
LAST-MODIFIED:20250304T081528Z
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SUMMARY:Ngoc Cuong Nguyen (KAIST)
DESCRIPTION:Ngoc Cuong Nguyen\nVisitor (2025.3.1-2026.2.15) from KAIST\nOffice: B248
URL:https://ccg.ibs.re.kr/event/250301-260215/
CATEGORIES:Visitors
ATTACH;FMTTYPE=image/jpeg:https://ccg.ibs.re.kr/wp-content/uploads/2025/03/ncnguyen_rescaled-1.jpg
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BEGIN:VEVENT
DTSTART;TZID=Asia/Seoul:20250911T140000
DTEND;TZID=Asia/Seoul:20250911T150000
DTSTAMP:20260415T152454
CREATED:20250811T073750Z
LAST-MODIFIED:20250811T075032Z
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SUMMARY:Qifeng Li\, Minimal rational curves on equivariant compactifications of symmetric spaces
DESCRIPTION:    Speaker\n\n\nQifeng Li\nShandong University\n\n\n\n\n\n\nLet X be a smooth equivariant compactification of a symmetric space. In this talk\, we will discuss when a minimal rational curve on X is the orbit closure of a 1-parameter group. In case the symmetric space is of group type\, the answer is positive and moreover the VMRT is the closure of an adjoint orbit. This generalizes a result of Brion and Fu’s on wonderful compactifications to arbitrary equivariant compactifications. This is a joint work with Jun-Muk Hwang.
URL:https://ccg.ibs.re.kr/event/2025-0911/
LOCATION:B236-1\, IBS\, Korea\, Republic of
CATEGORIES:Complex Geometry Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Asia/Seoul:20250911T160000
DTEND;TZID=Asia/Seoul:20250911T170000
DTSTAMP:20260415T152454
CREATED:20250811T074515Z
LAST-MODIFIED:20250811T075048Z
UID:4009-1757606400-1757610000@ccg.ibs.re.kr
SUMMARY:Yong Hu\, Moduli spaces of threefolds on the Noether line
DESCRIPTION:    Speaker\n\n\nYong Hu\nShanghai Jiao Tong University\n\n\n\n\n\n\nIn this talk\, we will introduce the 3-dimensional Noether inequality and completely classify the canonical threefolds on the Noether line with $p_g \ge 5$ by studying their moduli spaces. For every such moduli space\, we establish an explicit stratification\, estimate the number of its irreducible components and prove the dimension formula. A new and unexpected phenomenon is that the number of irreducible components grows linearly with the geometric genus\, while the moduli space of canonical surfaces on the Noether line with any prescribed geometric genus has at most two irreducible components of the same dimension. This is a joint work with S.Coughlan\, R.Pignatelli and T.Zhang.
URL:https://ccg.ibs.re.kr/event/2025-0911-2/
LOCATION:B236-1\, IBS\, Korea\, Republic of
CATEGORIES:Complex Geometry Seminar
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