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TZID:Asia/Seoul
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TZOFFSETFROM:+0900
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DTSTART:20230101T000000
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BEGIN:VEVENT
DTSTART;TZID=Asia/Seoul:20241211T160000
DTEND;TZID=Asia/Seoul:20241211T170000
DTSTAMP:20260417T052956
CREATED:20241118T134009Z
LAST-MODIFIED:20241118T134128Z
UID:3512-1733932800-1733936400@ccg.ibs.re.kr
SUMMARY:Luca Schaffler\, Unimodal Singularities and Boundary Divisors in the KSBA Moduli of a Class of Horikawa Surfaces
DESCRIPTION:    Speaker\n\n\nLuca Schaffler\nRoma Tre University\n\n\n\n\n\n\nSmooth minimal surfaces of general type with K2=1\, pg=2\, and q=0 constitute a fundamental example in the geography of algebraic surfaces\, and the 28-dimensional moduli space M of their canonical models admits a modular compactification M via the minimal model program. We describe eight new irreducible boundary divisors in such compactification parametrizing reducible stable surfaces. Additionally\, we study the relation with the GIT compactification of M and the Hodge theory of the degenerate surfaces that the eight divisors parametrize. Time permitting\, we will discuss recent progress aimed at generalizing these techniques to study the boundary of compact moduli of other types of stable surfaces. This is joint work with Patricio Gallardo\, Gregory Pearlstein\, and Zheng Zhang.
URL:https://ccg.ibs.re.kr/event/2024-1211/
LOCATION:B236-1\, IBS\, Korea\, Republic of
CATEGORIES:Algebraic Geometry Seminar
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