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DTSTART:20240101T000000
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BEGIN:VEVENT
DTSTART;TZID=Asia/Seoul:20250226T150000
DTEND;TZID=Asia/Seoul:20250226T163000
DTSTAMP:20260416T000615
CREATED:20250205T121238Z
LAST-MODIFIED:20250205T121730Z
UID:3598-1740582000-1740587400@ccg.ibs.re.kr
SUMMARY:Sung-Yeon Kim\, Real orbits in flag manifolds
DESCRIPTION:    Speaker\n\n\nSung-Yeon Kim\nIBS CCG\n\n\n\n\n\n\nLet G​ be a complex semisimple Lie group\, P​​ be a parabolic subgroup and G0​​ be a real form of G.​​ Then the flag manifold G/P​​ decomposes into finitely many G0-orbits. The complex structure of G/P​​ yields a natural homogeneous CR manifold structure on the real orbits such that all elements in G0 are CR automorphisms. Among them there is exactly one orbit of minimal dimension\, which is compact. Shilov boundary of bounded symmetric domains are the well-known examples of such minimal orbits. In this talk\, we study real orbits from the point of view of CR geometry. In particular we study the CR structures on the minimal orbits in Grassmannians.
URL:https://ccg.ibs.re.kr/event/2025-0226/
LOCATION:B236-1\, IBS\, Korea\, Republic of
CATEGORIES:Complex Geometry Seminar
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BEGIN:VEVENT
DTSTART;TZID=Asia/Seoul:20250227T150000
DTEND;TZID=Asia/Seoul:20250227T163000
DTSTAMP:20260416T000615
CREATED:20250205T121541Z
LAST-MODIFIED:20250205T121541Z
UID:3600-1740668400-1740673800@ccg.ibs.re.kr
SUMMARY:Sung-Yeon Kim\, Proper holomorphic maps between bounded symmetric domains
DESCRIPTION:    Speaker\n\n\nSung-Yeon Kim\nIBS CCG\n\n\n\n\n\n\nIn this talk\, we study the rigidity of proper holomorphic maps f: Ω→Ω‘​​ between irreducible bounded symmetric domains Ω​​ and Ω‘​​. First\, we will define the moduli maps induced by f​​. This moduli maps are CR maps between real orbits in flag maniflods. If the rank difference is small\, i.e.\, 2 ≤ rank(Ω‘)< 2 rank(Ω)-1​​\, then there exists a moduli map which preserves the VMRT structures on the real orbits. Using this property\, we will show that f: Ω → Ω‘​​ is a holomorphic totally geodesic isometric embedding with respect to Kobayashi metrics for certain pairs (Ω\, Ω‘)​​. This is a joint work with N. Mok and A. Seo.
URL:https://ccg.ibs.re.kr/event/2025-0227/
LOCATION:B236-1\, IBS\, Korea\, Republic of
CATEGORIES:Complex Geometry Seminar
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