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PRODID:-//Center for Complex Geometry - ECPv6.16.2//NONSGML v1.0//EN
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METHOD:PUBLISH
X-ORIGINAL-URL:https://ccg.ibs.re.kr
X-WR-CALDESC:Events for Center for Complex Geometry
REFRESH-INTERVAL;VALUE=DURATION:PT1H
X-Robots-Tag:noindex
X-PUBLISHED-TTL:PT1H
BEGIN:VTIMEZONE
TZID:Asia/Seoul
BEGIN:STANDARD
TZOFFSETFROM:+0900
TZOFFSETTO:+0900
TZNAME:KST
DTSTART:20210101T000000
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BEGIN:VEVENT
DTSTART;VALUE=DATE:20220815
DTEND;VALUE=DATE:20230815
DTSTAMP:20260528T033144
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;VALUE=DATE:20230301
DTEND;VALUE=DATE:20240229
DTSTAMP:20260528T033144
CREATED:20230425T013322Z
LAST-MODIFIED:20230504T065225Z
UID:2258-1677628800-1709164799@ccg.ibs.re.kr
SUMMARY:Insong Choe (최인송\, Konkuk University)
DESCRIPTION:Insong Choe (최인송) \nVisitor (2023.3.1-2024.2.28) from Konkuk University \nOffice: B255
URL:https://ccg.ibs.re.kr/event/230301-240228/
CATEGORIES:Visitors
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Asia/Seoul:20230803T160000
DTEND;TZID=Asia/Seoul:20230803T170000
DTSTAMP:20260528T033144
CREATED:20230724T090504Z
LAST-MODIFIED:20230724T090504Z
UID:2389-1691078400-1691082000@ccg.ibs.re.kr
SUMMARY:Gunhee Cho\, Non-measure Hyperbolicity of K3 and Enriques Surfaces
DESCRIPTION:    Speaker\n\n\nGunhee Cho\nUCSB\n\n\n\n\n\n\nBy exploiting the upper semicontinuity of the Kobayashi-Eisenman pseudo volume (and pseudometric) under deformations of complex structures\, we establish the non-measure hyperbolicity of K3 surfaces—which M. Green and P. Griffiths verified for certain cases in 1980—holds for all K3 surfaces. Our result provides a stronger condition than the Kobayashi non-hyperbolicity for any complex K3 surface\, which had been demonstrated by L. Kamenova\, S. Lu\, and M. Verbitsky. An interesting consequence is the non-measure hyperbolicity of Enriques surfaces. This is the joint work with David R. Morrison.
URL:https://ccg.ibs.re.kr/event/2023-08-03/
LOCATION:B266\, IBS\, Korea\, Republic of
CATEGORIES:Several Complex Variables Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Asia/Seoul:20230807T140000
DTEND;TZID=Asia/Seoul:20230807T145000
DTSTAMP:20260528T033144
CREATED:20230802T061117Z
LAST-MODIFIED:20230802T061320Z
UID:2425-1691416800-1691419800@ccg.ibs.re.kr
SUMMARY:Minseong Kwon\, Spherical Geometry of Hilbert Schemes of Conics in Adjoint Varieties
DESCRIPTION:    Speaker\n\n\nMinseong Kwon\nKAIST\n\n\n\n\n\n\nFor each rational homogeneous space\, the space of lines is now well-understood and can be described in terms of the induced group action. It is natural to consider rational curves of higher degree\, and in this talk\, we discuss geometry of conics in adjoint varieties\, which are rational homogeneous spaces associated to simple Lie algebras. Each adjoint variety is equipped with a hyperplane distribution called the contact distribution\, and we show that smooth conics transverse to the contact distribution form a homogeneous symmetric variety if the adjoint variety is of Picard number 1. This enables us to view the Hilbert scheme of conics as a spherical variety\, and we compute its colored fan by using the description of the space of lines and the Hilbert-Chow morphism.
URL:https://ccg.ibs.re.kr/event/2023-08-07-1400-1450/
LOCATION:B266\, IBS\, Korea\, Republic of
CATEGORIES:Complex Geometry Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Asia/Seoul:20230807T150000
DTEND;TZID=Asia/Seoul:20230807T163000
DTSTAMP:20260528T033144
CREATED:20230720T004336Z
LAST-MODIFIED:20230802T043609Z
UID:2372-1691420400-1691425800@ccg.ibs.re.kr
SUMMARY:Kyeong-Dong Park\, K-stability of Fano Spherical Varieties\, I
DESCRIPTION:    Speaker\n\n\nKyeong-Dong Park\nGyeongsang National University\n\n\n\n\n\n\nThe aim of this seminar is to provide participants with a comprehensive understanding of the paper “K-stability of Fano spherical varieties” by Thibaut Delcroix. For a reductive algebraic group G\, a normal G-variety is called spherical if it contains an open B-orbit\, where B is a fixed Borel subgroup of G. The class of spherical varieties contains several important families which were studied independently\, for example\, toric varieties\, rational homogeneous varieties\, group embeddings\, horospherical varieties\, symmetric varieties\, and wonderful varieties. They are classified by combinatorial objects called colored fans\, which generalize the fans appearing in the classification of toric varieties. We discuss Delcroix’s combinatorial criterion for K-stability of a smooth Fano spherical variety in terms of the barycenter of its moment polytope with respect to the Duistermaat-Heckman measure and data associated to the corresponding spherical homogeneous space. \n(1) Spherical varieties\, colored fans\, and algebraic moment polytopes \n(2) Criterion for K-stability of Fano spherical varieties and its applications \n(3) Equivariant test configurations with horospherical central fiber\, and modified Futaki invariant
URL:https://ccg.ibs.re.kr/event/2023-08-07-1500-1630/
LOCATION:B266\, IBS\, Korea\, Republic of
CATEGORIES:Complex Geometry Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Asia/Seoul:20230808T103000
DTEND;TZID=Asia/Seoul:20230808T120000
DTSTAMP:20260528T033144
CREATED:20230720T004506Z
LAST-MODIFIED:20230720T004633Z
UID:2375-1691490600-1691496000@ccg.ibs.re.kr
SUMMARY:Kyeong-Dong Park\, K-stability of Fano Spherical Varieties\, II
DESCRIPTION:    Speaker\n\n\nKyeong-Dong Park\nGyeongsang National University\n\n\n\n\n\n\nThe aim of this seminar is to provide participants with a comprehensive understanding of the paper “K-stability of Fano spherical varieties” by Thibaut Delcroix. For a reductive algebraic group G\, a normal G-variety is called spherical if it contains an open B-orbit\, where B is a fixed Borel subgroup of G. The class of spherical varieties contains several important families which were studied independently\, for example\, toric varieties\, rational homogeneous varieties\, group embeddings\, horospherical varieties\, symmetric varieties\, and wonderful varieties. They are classified by combinatorial objects called colored fans\, which generalize the fans appearing in the classification of toric varieties. We discuss Delcroix’s combinatorial criterion for K-stability of a smooth Fano spherical variety in terms of the barycenter of its moment polytope with respect to the Duistermaat-Heckman measure and data associated to the corresponding spherical homogeneous space. \n(1) Spherical varieties\, colored fans\, and algebraic moment polytopes \n(2) Criterion for K-stability of Fano spherical varieties and its applications \n(3) Equivariant test configurations with horospherical central fiber\, and modified Futaki invariant
URL:https://ccg.ibs.re.kr/event/2023-08-08-1030-1200/
LOCATION:B266\, IBS\, Korea\, Republic of
CATEGORIES:Complex Geometry Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Asia/Seoul:20230808T150000
DTEND;TZID=Asia/Seoul:20230808T163000
DTSTAMP:20260528T033144
CREATED:20230720T004618Z
LAST-MODIFIED:20230720T004618Z
UID:2377-1691506800-1691512200@ccg.ibs.re.kr
SUMMARY:Kyeong-Dong Park\, K-stability of Fano Spherical Varieties\, III
DESCRIPTION:    Speaker\n\n\nKyeong-Dong Park\nGyeongsang National University\n\n\n\n\n\n\nThe aim of this seminar is to provide participants with a comprehensive understanding of the paper “K-stability of Fano spherical varieties” by Thibaut Delcroix. For a reductive algebraic group G\, a normal G-variety is called spherical if it contains an open B-orbit\, where B is a fixed Borel subgroup of G. The class of spherical varieties contains several important families which were studied independently\, for example\, toric varieties\, rational homogeneous varieties\, group embeddings\, horospherical varieties\, symmetric varieties\, and wonderful varieties. They are classified by combinatorial objects called colored fans\, which generalize the fans appearing in the classification of toric varieties. We discuss Delcroix’s combinatorial criterion for K-stability of a smooth Fano spherical variety in terms of the barycenter of its moment polytope with respect to the Duistermaat-Heckman measure and data associated to the corresponding spherical homogeneous space. \n(1) Spherical varieties\, colored fans\, and algebraic moment polytopes \n(2) Criterion for K-stability of Fano spherical varieties and its applications \n(3) Equivariant test configurations with horospherical central fiber\, and modified Futaki invariant
URL:https://ccg.ibs.re.kr/event/2023-08-08-1500-1630/
LOCATION:B266\, IBS\, Korea\, Republic of
CATEGORIES:Complex Geometry Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20230816
DTEND;VALUE=DATE:20230819
DTSTAMP:20260528T033144
CREATED:20230504T070002Z
LAST-MODIFIED:20230731T055006Z
UID:2280-1692144000-1692403199@ccg.ibs.re.kr
SUMMARY:KSCV Workshop #26
DESCRIPTION:Speakers\nTaeyong Ahn (Inha University)\nYe-Won Luke Cho (Pusan National University)\nYoung-Jun Choi (Pusan National University)\nPham Hoang Hiep (Vietnam Academy of Science and Technology)\nDinh Tuan Huynh (Hue University of Education-Hue University)\nŁukasz Kosiński (Jagiellonian University)\nKang-Hyurk Lee (Gyeongsang National University)\nMan-Chun Lee (The Chinese University of Hong Kong)\nHoseob Seo (Institute for Basic Science)\nGuolei Zhong (Institute for Basic Science) \nAbstracts\nPDF File \nSchedule\nDay 1: August 16 (Wednesday) \n\n\n\n~10:00\nRegistration\n\n\n10:00~11:00\nKang-Hyurk Lee\nThe method of potential rescaling and a characterization of the unit ball\n\n\n11:00~11:30\nCoffee Break\n\n\n11:30~12:30\nDinh Tuan Huynh (online)\nUniversal entrie curves in projective spaces with slow growth\n\n\n12:30~14:30\nLunch\n\n\n14:30~15:30\nTaeyong Ahn\nEquidistribution of positive closed currents on a compact Kähler manifold\n\n\n15:30~16:00\nCoffee Break\n\n\n16:00-17:00\nGuolei Zhong\nCompact Kähler threefolds with the action of an abelian group of maximal dynamical rank\n\n\n18:00~20:00\nSpeakers Dinner\n\n\n\n  \nDay 2: August 17 (Thursday) \n\n\n\n10:00~11:00\nYoung-Jun Choi\nAn injectivity theorem on snc compact Kähler spaces\n\n\n11:00~11:30\nCoffee Break\n\n\n11:30~12:30\nPham Hoang Hiep (online)\nSingularity invariants of plurisubharmonic functions\n\n\n12:30~14:30\nLunch\n\n\n14:30~15:30\nMan-Chun Lee\nKähler-Ricci flow on non-compact manifolds and application\n\n\n15:30~16:00\nCoffee Break\n\n\n16:00-17:00\nYe-Won Luke Cho\nContinuity of singular Kähler-Einstein potentials\n\n\n17:30-19:00\nBanquet\n\n\n\n  \nDay 3: August 19 (Friday) \n\n\n\n10:00~11:00\nHoseob-Seo\nOhsawa measures on singular hypersurfaces and its applications\n\n\n11:00~11:30\nCoffee Break\n\n\n11:30~12:30\nŁukasz Kosiński\nA Gehring-Hayman inequality\n\n\n\nOrganizers\nDano Kim (Seoul National University)\nSung-Yeon Kim (Institute for Basic Science)\nN. Cuong Nguyen (Korea Advanced Institute of Science and Technology)\nAeryeong Seo (Kyungpook National University) \nVenue\nB109\, IBS\, Korea \nRegistration\nPlease submit Google form by July 28. \nMore Information\n• How to get to IBS-CCG\n• From Hotel to IBS\n• IBS Cafeteria (Lunch) \nParticipants\nSui-Chung Ng (East China Normal University)\nBou Kang (KAIST)\nMario Chan (Pusan National University)\nJisoo Byun (Kyungnam University)\nHoseob Seo (Institute for Basic Science)\nSungmin Yoo (Incheon National University)\nSeungjae Lee (Institute for Basic Science)\nHan-Wool Lee (Korea University)\nHanjin Lee (Handong Global University)\nJiwon Jeong (Pusan National University)\nYe-Won Luke Cho (Pusan National University)\nBoo Rim Choe (Korea University)\nHyunil Choi (Pusan National University)\nJihun Yum (Institute for Basic Science)\nKang-Hyurk Lee (Gyeongsang National University)\nDo young Choi (KAIST)\nKang-Tae Kim (POSTECH)\nChiwon Yoon (KAIST) \nSupported by Institute for Mathematical Convergence\, KNU
URL:https://ccg.ibs.re.kr/event/2023-08-16-18/
LOCATION:B109\, IBS\, Korea\, Republic of
CATEGORIES:Conferences and Workshops
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