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PRODID:-//Center for Complex Geometry - ECPv6.16.3//NONSGML v1.0//EN
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X-ORIGINAL-URL:https://ccg.ibs.re.kr
X-WR-CALDESC:Events for Center for Complex Geometry
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BEGIN:VTIMEZONE
TZID:Asia/Seoul
BEGIN:STANDARD
TZOFFSETFROM:+0900
TZOFFSETTO:+0900
TZNAME:KST
DTSTART:20250101T000000
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BEGIN:VEVENT
DTSTART;TZID=Asia/Seoul:20260616T160000
DTEND;TZID=Asia/Seoul:20260616T170000
DTSTAMP:20260615T174305
CREATED:20260615T070009Z
LAST-MODIFIED:20260615T070009Z
UID:4590-1781625600-1781629200@ccg.ibs.re.kr
SUMMARY:Some geometric problems on G-varieties of complexity 1
DESCRIPTION:    Speaker\n\n\nYan Li\nBeijing Institute of Technology\n\n\n\n\n\n\nLet $G$ be a connected\, reductive\, linear algebraic group that acts on a normal variety $X$\, and $B$ be a Borel subgroup group of $G$. The complexity of the $G$-action on $X$ was defined by E. B. Vinberg in 1985 as the codimension of $B$-orbit at a sufficiently general position. $G$-varieties of complexity 0 are the well-known spherical varieties\, which have been widely studied by many authors in the past decades. $G$-varieties of complexity 1 also provides rich examples\, the basic theory on geometrical structure was founded by D. A. Timashev in 1997. \nIn the first lecture\, I will give an overview on the classification theory\, as well as some fundamental theorems on geometrical structure of $G$-varieties of complexity 1 which are mainly established by D. A. Timashev. In the second one\, I will introduce some recent works on geometrico-analysis problems on $G$-varieties of complexity 1\, such as K-stability and its weighted version. We will start from the former works of Suss\, Ilten\, Langlois\, Terpereau\, etc. until our recent ones.
URL:https://ccg.ibs.re.kr/event/some-geometric-problems-on-g-varieties-of-complexity-1/
LOCATION:B236-1\, IBS\, Korea\, Republic of
CATEGORIES:Algebraic Geometry Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Asia/Seoul:20260617T160000
DTEND;TZID=Asia/Seoul:20260617T170000
DTSTAMP:20260615T174305
CREATED:20260615T070110Z
LAST-MODIFIED:20260615T070110Z
UID:4593-1781712000-1781715600@ccg.ibs.re.kr
SUMMARY:Some geometric problems on G-varieties of complexity 1
DESCRIPTION:    Speaker\n\n\nYan Li\nBeijing Institute of Technology\n\n\n\n\n\n\nLet $G$ be a connected\, reductive\, linear algebraic group that acts on a normal variety $X$\, and $B$ be a Borel subgroup group of $G$. The complexity of the $G$-action on $X$ was defined by E. B. Vinberg in 1985 as the codimension of $B$-orbit at a sufficiently general position. $G$-varieties of complexity 0 are the well-known spherical varieties\, which have been widely studied by many authors in the past decades. $G$-varieties of complexity 1 also provides rich examples\, the basic theory on geometrical structure was founded by D. A. Timashev in 1997. \nIn the first lecture\, I will give an overview on the classification theory\, as well as some fundamental theorems on geometrical structure of $G$-varieties of complexity 1 which are mainly established by D. A. Timashev. In the second one\, I will introduce some recent works on geometrico-analysis problems on $G$-varieties of complexity 1\, such as K-stability and its weighted version. We will start from the former works of Suss\, Ilten\, Langlois\, Terpereau\, etc. until our recent ones.
URL:https://ccg.ibs.re.kr/event/some-geometric-problems-on-g-varieties-of-complexity-1-2/
LOCATION:B236-1\, IBS\, Korea\, Republic of
CATEGORIES:Algebraic Geometry Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Asia/Seoul:20260709T163000
DTEND;TZID=Asia/Seoul:20260709T173000
DTSTAMP:20260615T174305
CREATED:20260609T062941Z
LAST-MODIFIED:20260609T062941Z
UID:4571-1783614600-1783618200@ccg.ibs.re.kr
SUMMARY:TBA
DESCRIPTION:    Speaker\n\n\nSung Gi Park\nPrinceton University\n\n\n\n\n\n\nTBA
URL:https://ccg.ibs.re.kr/event/tba-6/
LOCATION:B236-1\, IBS\, Korea\, Republic of
CATEGORIES:Algebraic Geometry Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Asia/Seoul:20260710T100000
DTEND;TZID=Asia/Seoul:20260710T110000
DTSTAMP:20260615T174305
CREATED:20260609T063041Z
LAST-MODIFIED:20260609T063041Z
UID:4573-1783677600-1783681200@ccg.ibs.re.kr
SUMMARY:TBA
DESCRIPTION:    Speaker\n\n\nHyunsuk Kim\nUniversity of Michigan\n\n\n\n\n\n\nTBA
URL:https://ccg.ibs.re.kr/event/tba-7/
LOCATION:B236-1\, IBS\, Korea\, Republic of
CATEGORIES:Algebraic Geometry Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20261109
DTEND;VALUE=DATE:20261114
DTSTAMP:20260615T174305
CREATED:20260307T152404Z
LAST-MODIFIED:20260613T170852Z
UID:4463-1794182400-1794614399@ccg.ibs.re.kr
SUMMARY:Conference on Complex Geometry
DESCRIPTION:Speakers\nRodolf Aguilar Aguilar (CIMAT\, Guanajuato)\nCong Ding (Shenzhen U.)\nCecil Gachet (U. Bochum)\nJaehyun Hong (IBS-CCG)\nXiaojun Huang (Rutgers U.)\nYuta Kusakabe (Kyushu U.)\nMinseong Kwon (AMSS\, Beijing)\nSuichung Ng (ECNU\, Shanghai)\nDan Popovici (U. Toulouse)\nVasily Rogov (MPI\, Leipzig)\nMin Ru (U. Houston)\nAeryeong Seo (Kyungpook National U.)\nLaurent Stolovitch (U. Nice)\nSheng-Li Tan (ECNU\, Shanghai)\nWing-Keung To (National U. Singapore)\nI-Hsun Tsai (National Taiwan U.)\nJulie Wang (Academia Sinica\, Taipei)\nKwok Kin Wong (Shenzhen U.) \nAbstracts\nTBA \nSchedule\nTBA \nOrganizers\nPhilippe Eyssidieux (U. Grenoble)\nJun-Muk Hwang (IBS-CCG)\nSung Yeon Kim (IBS-CCG)\nNgaiming Mok (U. Hong Kong) \nVenue\nScience Culture Center\, IBS\, Daejeon\, Korea \nMore Information\n• How to get to IBS-CCG
URL:https://ccg.ibs.re.kr/event/2026-11-09-13/
LOCATION:IBS Science Culture Center\, Daejeon\, Korea\, Republic of
CATEGORIES:Conferences and Workshops
END:VEVENT
END:VCALENDAR