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PRODID:-//Center for Complex Geometry - ECPv6.15.20//NONSGML v1.0//EN
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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
TZNAME:KST
DTSTART:20230101T000000
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BEGIN:VEVENT
DTSTART;TZID=Asia/Seoul:20240521T160000
DTEND;TZID=Asia/Seoul:20240521T170000
DTSTAMP:20260416T171951
CREATED:20240410T120353Z
LAST-MODIFIED:20240507T000023Z
UID:3057-1716307200-1716310800@ccg.ibs.re.kr
SUMMARY:Shigeru Mukai\, Moduli of Abelian Surfaces\, Polyhedral Groups and Fano 3-folds of Degree 22 (Part 1)
DESCRIPTION:    Speaker\n\n\nShigeru Mukai\nRIMS\, Kyoto University\n\n\n\n\n\n\nI will discuss the moduli space of abelian surfaces with bi-level structure of type (1\, d) for d = 2\, 3\, 4\, 5. \nPart 1: Their Satake compactification is the projective 3-space P3 for d = 2\, 3\, 4. \nPart 2: It is a small contraction of the blow-up of P3 at 60 points for d = 5. I give two proofs. One is analytic and uses good automorphic forms constructed by Gritsenko-Nilulin. The other is algebraic and uses U22\, one of the Umemura 3-folds\, and Reye congruences.
URL:https://ccg.ibs.re.kr/event/2024-0521/
LOCATION:B236-1\, IBS\, Korea\, Republic of
CATEGORIES:Algebraic Geometry Seminar
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