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TZOFFSETFROM:-0500
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DTSTART:20260308T070000
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DTSTART:20251102T060000
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DTSTART;TZID=America/Toronto:20260528T143000
SEQUENCE:0
TRANSP:TRANSPARENT
DTEND;TZID=America/Toronto:20260528T153000
URL:https://uwaterloo.ca/combinatorics-and-optimization/events/algebraic-an
 d-enumerative-combinatorics-seminar-sergio
SUMMARY:Algebraic and Enumerative combinatorics seminar - Sergio Alejandro\
 nFernandez de Soto Guerrero-New combinatorial possibilities to describe\n(
 quotients of) positroids
CLASS:PUBLIC
DESCRIPTION:SPEAKER:\n Sergio Alejandro Fernandez de Soto Guerrero\n\nAFFIL
 IATION:\n TU Graz\n\nLOCATION:\n MC 5479\n\nABSTRACTPositroids were introd
 uced by Postnikov in 2006 as a special\nclass of matroids with nice combin
 atorial properties. Since 2008\,\nstarting with Suho Ho\, several attempts
  have been made to describe the\nposet of quotients for this class of matr
 oids in a combinatorial way.\nHowever\, these descriptions are incomplete 
 and always come from the\nsame perspective. That is why we will explore ne
 w combinatorial\nobjects and the context in which they arise (magic\, poly
 topes\, and\nantisymmetric algebras) to see if it is possible to describe 
 this\nposet.\n\nTHERE WILL BE A PRE-SEMINAR PRESENTING RELEVANT BACKGROUND
  AT\nBEGINNING GRADUATE LEVEL STARTING AT 1:30PM IN MC 5417.
DTSTAMP:20260523T104707Z
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