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TZID:America/Chicago
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DTSTART:20201101T020000
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DTSTART:20210314T020000
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BEGIN:VEVENT
UID:calendar.24633.field_event_date_2.0@math.wustl.edu
CREATED:20210208T204844Z
DESCRIPTION:Abstract: The discrete volume of an integral polytope, that is
, the number of lattice points in the polytope, is given by the Ehrhart
polynomial. The Ehrhart polynomials of the integral permutahedra of types
A, B, C, and D have been calculated (Federico Ardila, Federico Castill
o, and Michael Henley, 2015). However, it is often useful to work with
these permutahedra when their center is at the origin, and in the case of
type B and odd-dimension type A permutahedra, they become half-integral
polytopes, and their Ehrhart quasipolynomials were previously unknown. Us
ing signed graphs that arise from the generating vectors of each permutahe
dron, we are able to determine the information needed to compute the Ehrh
art quasipolynomials.\n\nHost: Nathan Wagner
DTSTART;TZID=America/Chicago:20210315T140000
DTEND;TZID=America/Chicago:20210315T150000
LAST-MODIFIED:20210309T164812Z
SUMMARY:Szego Seminar: 'Discrete Volume of Coxeter Permutahedra'
URL;TYPE=URI:https://math.wustl.edu/events/szego-seminar-discrete-volume-co
xeter-permutahedra
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