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DTSTART:20070311T020000
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DTSTAMP:20250314T182623
DTSTART;TZID=America/Detroit:20250402T160000
DTEND;TZID=America/Detroit:20250402T170000
SUMMARY:Workshop / Seminar:Probability and Analysis Seminar: New lower bounds for sphere packings and independent sets via randomness
DESCRIPTION:We construct new lower bounds for sphere packings in high dimensions and for independent sets in graphs with not-too-large co-degrees. For dimension d\, this achieves a sphere packing of density (1 + o(1)) d log d / 2^(d+1). In general dimension this provides the first asymptotically growing improvement for sphere packing lower bounds since Rogers' bound of c*d/2^d in 1947. The proof amounts to a random (very dense) discretization together with a new theorem on constructing independent sets on graphs with not-too-large co-degree. Both steps will be discussed and no knowledge of sphere packings will be assumed or required. Central to the analysis is the study of a random process on a graph.  This is based on joint work with Marcelo Campos\, Matthew Jenssen and Julian Sahasrabudhe.
UID:133307-21872717@events.umich.edu
URL:https://events.umich.edu/event/133307
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 3096
CONTACT:
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DTSTAMP:20250206T234726
DTSTART;TZID=America/Detroit:20250402T160000
DTEND;TZID=America/Detroit:20250402T170000
SUMMARY:Workshop / Seminar:Student AIM Seminar: TBA
DESCRIPTION:TBA
UID:131413-21868442@events.umich.edu
URL:https://events.umich.edu/event/131413
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Applied Mathematics,Mathematics
LOCATION:East Hall - 3088
CONTACT:
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BEGIN:VEVENT
DTSTAMP:20250307T121708
DTSTART;TZID=America/Detroit:20250402T163000
DTEND;TZID=America/Detroit:20250402T183000
SUMMARY:Performance:Voice & Opera / Stephen West Studio Recital\, Part II
DESCRIPTION:Students of the voice studio of Professor Stephen West will be featured in a recital of classical art songs\, operatic arias\, spirituals\, and musical theatre favorites. Free and open to the public!
UID:133219-21872610@events.umich.edu
URL:https://events.umich.edu/event/133219
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Free,Music,North Campus
LOCATION:Walgreen Drama Center - Stamps Auditorium
CONTACT:
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