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DTSTART:20240310T070000
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DTSTART:20231105T060000
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DTSTART;TZID=America/Toronto:20240722T113000
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URL:https://uwaterloo.ca/combinatorics-and-optimization/events/algebraic-gr
 aph-theory-pierre-antoine-bernard
SUMMARY:Algebraic Graph Theory - Pierre-Antoine Bernard
CLASS:PUBLIC
DESCRIPTION:TITLE: Bivariate P-polynomial Association Schemes on the Fiber
 s of\nUniform Posets\n\nSPEAKER:\n Pierre-Antoine Bernard\n\nAFFILIATION:\
 n Université de Montréal\n\nLOCATION:\n Please contact Sabrina Lato for 
 the Zoom link.\n\nABSTRACT: Orthogonal polynomials emerging in the contex
 t of P- and\nQ-polynomial association schemes are known to reside within t
 he\nAskey-scheme. This relationship forms a bridge between algebraic\ncomb
 inatorics and the study of special functions\, yielding significant\nbenef
 its for both fields. Recent research has introduced multivariate\ngenerali
 zations of P- and Q-polynomial association schemes and\nprovided numerous 
 examples. This development aims notably to deepen\nour understanding of mu
 ltivariate analogues of Askey-Wilson\npolynomials. In this talk\, we will 
 review this generalization\, its\nconnection to m-distance-regular graphs\
 , and an algebraic\ncombinatorial structure known as a \"uniform poset\,\"
  from which many\nexamples of bivariate schemes appear to originate.
DTSTAMP:20260403T091223Z
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