BEGIN:VCALENDAR VERSION:2.0 PRODID:researchseminars.org CALSCALE:GREGORIAN X-WR-CALNAME:researchseminars.org BEGIN:VEVENT SUMMARY:Yujie Xu (Harvard) DTSTART:20211112T153000Z DTEND:20211112T170000Z DTSTAMP:20260423T004655Z UID:CAFAS/31 DESCRIPTION:Title: O n normalization in the integral models of Shimura varieties of Hodge type< /a>\nby Yujie Xu (Harvard) as part of Columbia Automorphic Forms and Arith metic Seminar\n\n\nAbstract\nShimura varieties are moduli spaces of abelia n varieties with extra structures. Over the decades\, various mathematicia ns (e.g. Rapoport\, Kottwitz\, etc.) have constructed integral models of S himura varieties. In this talk\, I will discuss some motivic aspects of in tegral models of Hodge type constructed by Kisin (resp. Kisin-Pappas). I w ill talk about recent work on removing the normalization step in the const ruction of such integral models\, which gives closed embeddings of Hodge t ype integral models into Siegel integral models under some assumption. I w ill explain how this question is related to the Grothendieck Standard Conj ecture D for abelian varieties\, and sketch a proof of this type of questi ons if time permits. I will also mention an application to toroidal compac tifications of Hodge type integral models.\n LOCATION:https://researchseminars.org/talk/CAFAS/31/ END:VEVENT END:VCALENDAR