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DTSTART:20070311T020000
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DTSTAMP:20261028T190848
DTSTART;TZID=America/Detroit:20261106T150000
DTEND;TZID=America/Detroit:20261106T160000
SUMMARY:Workshop / Seminar:Periodic pipe dreams and matrix positroid varieties
DESCRIPTION:Fan\, Guo\, Su and our own Rui Xiong introduced \"periodic pipe dreams\" to compute fundamental  classes of positroid varieties\, as classes on Grassmannians. Their formula is too beautiful to live only in a quotient ring. I'll explain some subtleties in interpreting it geometrically upstairs in the polynomial ring\, and extend it to compute classes of other projected Richardson varieties. As in the work of Fan\, Guo\, Su and Xiong\, we will also discuss CSM classes of the related open varieties.  This work is joint with Paul Zinn-Justin.
UID:150159-21908304@events.umich.edu
URL:https://events.umich.edu/event/150159
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 4088
CONTACT:
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