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DTSTART:20240310T070000
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DTSTART:20231105T060000
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DTSTART;TZID=America/Toronto:20240314T140000
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URL:https://uwaterloo.ca/combinatorics-and-optimization/events/algebraic-an
 d-enumerative-combinatorics-nancy-wallace
SUMMARY:Algebraic and Enumerative Combinatorics - Nancy Wallace
CLASS:PUBLIC
DESCRIPTION:TITLE: Quasi-partition algebras representations\, planar\nQuasi
 -partition algebras and Characters of the Motzkin-Riordan algebra\n\nSPEAK
 ER:\n Nancy Wallace\n\nAFFILIATION:\n York University\n\nLOCATION:\n MC 54
 79\n\nABSTRACT: Daugherty and Orellana introduced a new diagram algebra\nc
 alled Quasipartition algebras in 2014. In this talk we will construct\nqua
 si-partition algebras and half quasi-partition algebras using an\nidempote
 nt. Then using set-valued tableaux we give a description of a\ncomplete se
 t of simple modules.Planar (half) quasi-partition algebras\nare sub-algebr
 as of (half) quasi-partition algebras. The set-valued\ntableaux cannot be 
 used in this setting\, but for certain values of\n$x$\, this sub-algebra i
 s isomorphic to the Motzkin-Riordan algebra in\nwhich it is easier to find
  the representations. Finally\, we use some\nidempotents of the Motzkin-Ri
 ordan algebra to compute the character\ntable.
DTSTAMP:20260404T175305Z
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