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DTSTART:20070311T020000
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DTSTAMP:20260819T104836
DTSTART;TZID=America/Detroit:20261103T143000
DTEND;TZID=America/Detroit:20261103T155000
SUMMARY:Workshop / Seminar:Debt-Deflation and the Recession of 1920-21
DESCRIPTION:--
UID:150515-21909537@events.umich.edu
URL:https://events.umich.edu/event/150515
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Economics,History,seminar
LOCATION:North Quad - 4325
CONTACT:
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BEGIN:VEVENT
DTSTAMP:20261102T130713
DTSTART;TZID=America/Detroit:20261103T150000
DTEND;TZID=America/Detroit:20261103T160000
SUMMARY:Workshop / Seminar:An Introduction to Singularities in Positive Characteristic
DESCRIPTION:Singularity theory is the study of how far regular local rings are from being smooth. In general\, even if a ring fails to be smooth\, it can still have many nice properties that allow arguments to go through: reduced\, normal\, CM\, Gorenstein\, among others. \n\nHowever\, there are some types of singularities in complex geometry whose definitions break down in positive characteristic. They may rely on analytic techniques\, or secretly divide by n!. In positive characteristic we then need different methods to define them. \n\nWe'll talk about how these properties are defined in terms of the Frobenius map\, why this map contains information about singularities\, and how one can meaningfully compare singularity types in characteristic zero or positive characteristic.
UID:154430-21917739@events.umich.edu
URL:https://events.umich.edu/event/154430
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:seminar
LOCATION:East Hall - 3088
CONTACT:
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