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DTSTART:20240310T070000
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DTSTART:20231105T060000
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DTSTART;TZID=America/Toronto:20241011T153000
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URL:/combinatorics-and-optimization/events/tutte-colloq
 uium-jessica-striker
SUMMARY:Tutte colloquium-Jessica Striker
CLASS:PUBLIC
DESCRIPTION:Summary \n\nTITLE: Rotation-invariant web bases from hourglass 
 plabic graphs and\nsymmetrized six-vertex configurations\n\nSPEAKER:\n Jes
 sica Striker\n\nAFFILIATION:\n North Dakota State University\n\nLOCATION:\
 n MC 5501\n\nABSTRACT: Many combinatorial objects with strikingly good enu
 merative\nformulae also have remarkable dynamical behavior and underlying\
 nalgebraic structure. In this talk\, we consider the promotion action on\n
 certain rectangular tableaux and explain its small\, predictable order\nby
  reinterpreting promotion as a rotation in disguise. We show how the\nsear
 ch for this visual explanation of combinatorial dynamics led to\nthe solut
 ion of an algebraic problem involving web bases and a\ngeneralization of t
 he six-vertex model of statistical physics. We find\nthat this framework i
 ncludes several unexpected combinatorial objects\nof interest: alternating
  sign matrices\, plane partitions\, and their\nsymmetry classes (joint wit
 h Ashleigh Adams). This talk is based\nprimarily on joint work with Christ
 ian Gaetz\, Stephan\nPfannerer\, Oliver Pechenik\, and Joshua P. Swanson.
 \n\n \n 
DTSTAMP:20250711T084935Z
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