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URL:/combinatorics-and-optimization/events/algebraic-co
 mbinatorics-seminar-christian-gaetz
SUMMARY:Algebraic Combinatorics Seminar - Christian Gaetz
CLASS:PUBLIC
DESCRIPTION:Summary \n\nTITLE: 1-skeleton posets of Bruhat interval polytop
 es\n\nSpeaker\n Christian Gaetz\n\nAffiliation\n Harvard University\n\nRoo
 m:\n MC 5479 or please contact Olya Mandelshtam for Zoom Link\n\nABSTRACT:
   Bruhat interval polytopes are a well-studied class of\ngeneralized perm
 utohedra which arise as moment map images of various\ntoric varieties and 
 totally positive spaces in the flag variety. I\nwill describe work in prog
 ress in which I study the 1-skeleta of these\npolytopes\, viewed as posets
  interpolating between weak order and\nBruhat order. In many cases these p
 osets are lattices and the\npolytopes\, despite not being simple\, have i
 nteresting h-vectors.\n 
DTSTAMP:20250827T045806Z
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