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X-WR-CALNAME:Center for Complex Geometry
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
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TZOFFSETFROM:+0900
TZOFFSETTO:+0900
TZNAME:KST
DTSTART:20210101T000000
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BEGIN:VEVENT
DTSTART;TZID=Asia/Seoul:20220127T110000
DTEND;TZID=Asia/Seoul:20220127T120000
DTSTAMP:20260420T175605
CREATED:20220127T020000Z
LAST-MODIFIED:20220103T112105Z
UID:306-1643281200-1643284800@ccg.ibs.re.kr
SUMMARY:Jongbaek Song\, Regular Hessenberg Varieties and Toric Varieties
DESCRIPTION:     Speaker\n\n\nJongbaek Song\nKIAS\n\n\n\n\n\nA Hessenberg variety is a subvariety of the flag variety (G/B) determined by two parameters: one is an element of the Lie algebra of G and the other is a B-submodule containing the Lie algebra of B\, known as a Hessenberg space. In this talk\, we focus on elements in the regular locus of the Lie algebra and the Hessenberg space determined by negative simple roots. Then\, we aim to figure out cohomological relationship of these Hessenberg varieties with a certain class of toric varieties having orbifold singularities. The main result raises an interesting topic concerning toric varieties with symmetries by reflections. This is a joint work with M. Masuda\, T. Horiguchi and J. Shareshian.
URL:https://ccg.ibs.re.kr/event/2022-01-27/
LOCATION:TBA
CATEGORIES:Complex Geometry Seminar
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