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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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TZID:Asia/Seoul
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TZOFFSETFROM:+0900
TZOFFSETTO:+0900
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DTSTART:20210101T000000
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BEGIN:VEVENT
DTSTART;VALUE=DATE:20220222
DTEND;VALUE=DATE:20220223
DTSTAMP:20260420T093408
CREATED:20220221T150000Z
LAST-MODIFIED:20220207T010959Z
UID:1045-1645488000-1645574399@ccg.ibs.re.kr
SUMMARY:Arithemetic Geometry Day in IBS-CCG
DESCRIPTION:List of Seminars \n\n\n\n\n\nA Hyperelliptic Curve Mapping to Specified Elliptic Curves\nBo-Hae Im (KAIST)\n14:00-15:00\, IBS B266 \n\n\nJordan Constants of Simple Abelian Varieties over Fields of Positive Characteristic\nWonTae Hwang (Jeonbuk National Univ.)\n15:15-16:15\, IBS B266 \n\n\nDecidable Diophantine Problems on Character Varieties\nJunho Peter Whang (Seoul National Univ.)\n16:30-17:30\, IBS B266
URL:https://ccg.ibs.re.kr/event/2022-02-22/
LOCATION:B266\, IBS\, Korea\, Republic of
CATEGORIES:Conferences and Workshops
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Asia/Seoul:20220222T140000
DTEND;TZID=Asia/Seoul:20220222T150000
DTSTAMP:20260420T093408
CREATED:20220222T050000Z
LAST-MODIFIED:20220207T011418Z
UID:1049-1645538400-1645542000@ccg.ibs.re.kr
SUMMARY:Bo-Hae Im\, A Hyperelliptic Curve Mapping to Specified Elliptic Curves
DESCRIPTION:     Speaker\n\n\nBo-Hae Im\nKAIST\n\n\n\n\n\n\n(This is a part of Arithemetic Geometry Day in IBS-CCG.) \nWe are interested in the existence and non-existence of rational curves on certain Kummer varieties which can be applied to the rank problem of quadratic twists of elliptic curves. In this talk\, we prove that if the j-invariants of a 21-tuple of elliptic curves E1\, …\, E21 over C are algebraically independent over Q\, there is no hyperelliptic curve which admits a non-trivial morphism to each of the Ei\, which shows the non-existence of rational curves of the Kummer variety of the products of more than 20 elliptic curves.\nThis is a joint work with Michael Larsen and Sailun Zhan.
URL:https://ccg.ibs.re.kr/event/2022-02-22-1400/
LOCATION:B266\, IBS\, Korea\, Republic of
CATEGORIES:Algebraic Geometry Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Asia/Seoul:20220222T151500
DTEND;TZID=Asia/Seoul:20220222T161500
DTSTAMP:20260420T093408
CREATED:20220222T061500Z
LAST-MODIFIED:20220207T011550Z
UID:1052-1645542900-1645546500@ccg.ibs.re.kr
SUMMARY:WonTae Hwang\, Jordan Constants of Simple Abelian Varieties over Fields of Positive Characteristic
DESCRIPTION:     Speaker\n\n\nWonTae Hwang\nJeonbuk National Univ.\n\n\n\n\n\n\n(This is a part of Arithemetic Geometry Day in IBS-CCG.) \nWe compute the Jordan constants of simple abelian surfaces over fields of positive characteristic\, with the aid of a similar computation on the Jordan constants of some arithmetic objects. As an update\, we also briefly record a similar recent result on the case of simple abelian fourfolds over finite fields.
URL:https://ccg.ibs.re.kr/event/2022-02-22-1515/
LOCATION:B266\, IBS\, Korea\, Republic of
CATEGORIES:Algebraic Geometry Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Asia/Seoul:20220222T163000
DTEND;TZID=Asia/Seoul:20220222T173000
DTSTAMP:20260420T093408
CREATED:20220222T073000Z
LAST-MODIFIED:20220207T011657Z
UID:1055-1645547400-1645551000@ccg.ibs.re.kr
SUMMARY:Junho Peter Whang\, Decidable Diophantine Problems on Character Varieties
DESCRIPTION:     Speaker\n\n\nJunho Peter Whang\nSeoul National Univ.\n\n\n\n\n\n\n(This is a part of Arithemetic Geometry Day in IBS-CCG.) \nCharacter varieties of manifolds are basic objects in geometry and low-dimensional topology. We motivate the Diophantine study of their integral points. After discussing an effective finite generation theorem for integral points on SL2-character varieties of surfaces\, we present new decidability results for certain Diophantine problems on character varieties with other coefficient groups and manifolds.
URL:https://ccg.ibs.re.kr/event/2022-02-22-1630/
LOCATION:B266\, IBS\, Korea\, Republic of
CATEGORIES:Algebraic Geometry Seminar
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