BEGIN:VCALENDAR
VERSION:2.0
PRODID:icalendar-ruby
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VTIMEZONE
TZID:Europe/Vienna
BEGIN:DAYLIGHT
DTSTART:20250330T030000
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=3
TZNAME:CEST
END:DAYLIGHT
BEGIN:STANDARD
DTSTART:20251026T020000
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10
TZNAME:CET
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTAMP:20260424T233111Z
UID:1750935600@ist.ac.at
DTSTART:20250626T130000
DTEND:20250626T150000
DESCRIPTION:Speaker: Konstanze Rietsch\nhosted by Tamas Hausel\nAbstract: I
 n a recent work with L. Williams we construct a mirror superpotential for 
 Grassmannian Schubert varieties\, which is described explicitly in terms o
 f Pluecker coordinates and Young diagram combinatorics. We also construct 
 an associated polytope and toric degeneration of the Schubert variety. The
 se constructions are based on a particular anticanonical divisor and use t
 ropicalisation. While the superpotential is defined in all cases\, it has 
 particularly good properties when the Schubert variety is Gorenstein. In t
 his talk I first plan to give an introduction to some of these polytopal m
 irror symmetry' results. Then I will report on a more recent paper with Ch
 angzheng Li and Mingzhi Yang\, where we show how to detect whether a gener
 al Schubert variety in G/P is Gorenstein\, answering a question of Woo and
  Yong. We also prove an analogue of an old theorem of Dale Peterson's abou
 t smoothness of simply-laced G/B Schubert varieties\, now characterising f
 actoriality.
LOCATION:Heinzel Seminar Room (I21.EG.101)\, Office Building West\, ISTA\, 
 ISTA
ORGANIZER:Birgit.Oosthuizen-Noczil@ist.ac.at
SUMMARY:Konstanze Rietsch: (Anticanonical) Perspectives on Schubert Varieti
 es
URL:https://talks-calendar.ista.ac.at/events/5877
END:VEVENT
END:VCALENDAR