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DTSTART:20260308T070000
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DTSTART:20251102T060000
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DTSTART;TZID=America/Toronto:20261001T143000
SEQUENCE:0
TRANSP:TRANSPARENT
DTEND;TZID=America/Toronto:20261001T153000
URL:https://uwaterloo.ca/combinatorics-and-optimization/events/algebraic-an
 d-enumerative-combinatorics-seminar-theta
SUMMARY:Algebraic and Enumerative Combinatorics Seminar | Theta operators a
 nd\nLLT positivity
CLASS:PUBLIC
DESCRIPTION:SPEAKER:\n Vasu Tewari\n\nAFFILIATION:\n University of Toronto\
 n\nLOCATION:\n MC 5417\n\nABSTRACT: I will introduce a family of commutin
 g derivations on the\nring of symmetric polynomials. Using this family I w
 ill then define an\napparently-novel family of symmetric functions that is
  vertical-strip\nLLT positive and relates directly to the Theta operators 
 of\nD'Adderio–Iraci–Vanden Wyngaerd. Finally I'll discuss some\nconseq
 uences for the \"higher order\" Macdonald positivity conjecture of\nDołę
 ga. This is joint work with Jim Haglund.\n\nTHERE WILL BE A PRE-SEMINAR PR
 ESENTING RELEVANT BACKGROUND AT THE\nBEGINNING GRADUATE LEVEL STARTING AT
  1:30PM.
DTSTAMP:20260929T033742Z
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