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DTSTART:20250309T070000
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URL:https://uwaterloo.ca/combinatorics-and-optimization/events/tutte-colloq
 uium-allen-knutson
SUMMARY:Tutte colloquium-Allen Knutson
CLASS:PUBLIC
DESCRIPTION:TITLE:The mathematics of juggling\n\nSPEAKER:\n Allen Knutson\n
 \nAFFILIATION:\n Cornell University\n\nLOCATION:\n MC 5501\n\nABSTRACT: I'
 ll explain how to associate to any matrix a juggling\npattern\, with many 
 examples demonstrated. This will give a\ndecomposition of the Grassmannian
  Gr(k\,n)\, of k-planes in n-space\,\ninto pieces indexed by juggling patt
 erns. I'll explain how this\n\"positroid decomposition\" arises in (1) the
  very classical theory of\n\"totally positive (real) matrices\" (2) the ch
 aracteristic p theory of\n\"Frobenius splitting\" and (3) Poisson geometry
 .\n\n \n\n 
DTSTAMP:20260402T165556Z
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