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DTSTART:20230312T070000
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DTSTART:20221106T060000
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DTSTART;TZID=America/Toronto:20230710T200000
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URL:/combinatorics-and-optimization/events/algebraic-gr
 aph-theory-xiaoye-liang
SUMMARY:Algebraic Graph Theory - Xiaoye Liang
CLASS:PUBLIC
DESCRIPTION:Summary \n\nTITLE: Thin distance-regular graphs with classical 
 parameters\n$(D\,q\,q\,\\frac{q^{t}-1}{q-1}-1)$ with $t> D$ are the Grassm
 ann graphs\n\nSPEAKER:\n Xiaoye Liang\n\nAFFILIATION:\n Anhui Jianzhu Univ
 ersity\n\nLOCATION:\n Please contact Sabrina Lato for Zoom link\n\nABSTR
 ACT: In the survey paper by Van Dam\, Koolen and Tanaka\n(Distance-regular
  graphs\, Electron. J. Comb.\, Dynamic Survey (2016)\,\n\\#DS22)\, they as
 ked to classify the thin $Q$-polynomial\ndistance-regular graphs. In this 
 talk\, we will discuss our result\nwhich states that the Grassmann graphs 
 with large diameter are\ncharacterized by their intersection numbers under
  the extra condition\nthat they are thin.\n\nThis is joint work with Jack 
 Koolen and Ying-Ying Tan.\n 
DTSTAMP:20250521T031541Z
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