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DTSTART:19700308T020000
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BEGIN:VEVENT
UID:mathcal-21@shafikov.ca
DTSTAMP:19980119T070000Z
SUMMARY:Cohomological aspects of power ideals (Colin Crowley - Western)
DTSTART;TZID=America/Toronto:20260921T153000
DTEND;TZID=America/Toronto:20260921T163000
DESCRIPTION:Perhaps the most important invariant of an arrangement of hyperplanes is the associated matroid. Many cohomological invariants of the arrangement turn out to depend only on the underlying matroid\, and there has been much recent activity in the field of combinatorial Hodge theory which generalizes deep theorems from arrangements to abstract matroids. In this talk\, I'll discuss a bridge between these ideas\, and an area of algebraic combinatorics called Zonotopal algebra. Via this connection\, we can use tools from combinatorial Hodge theory to recover known results about zonotopal algebras as well as prove new ones\, including a conjecture of Rhoades\, Tewari\, and Wilson. We also explore new classes of zonotopal algebras inspired by vanishing results in combinatorial Hodge theory\, and vice versa.
LOCATION:MC 108
END:VEVENT
BEGIN:VEVENT
UID:mathcal-35@shafikov.ca
DTSTAMP:19980119T070000Z
SUMMARY:TBA (Yu Li - Notre Dame University)
DTSTART;TZID=America/Toronto:20261005T153000
DTEND;TZID=America/Toronto:20261005T163000
DESCRIPTION:
LOCATION:MC 108
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