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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:https://uwaterloo.ca/combinatorics-and-optimization/events/algebraic-gr
 aph-theory-xiaoye-liang
SUMMARY:Algebraic Graph Theory - Xiaoye Liang
CLASS:PUBLIC
DESCRIPTION:TITLE: Thin distance-regular graphs with classical parameters\n
 $(D\,q\,q\,\\frac{q^{t}-1}{q-1}-1)$ with $t> D$ are the Grassmann graphs\n
 \nSPEAKER:\n Xiaoye Liang\n\nAFFILIATION:\n Anhui Jianzhu University\n\nLO
 CATION:\n Please contact Sabrina Lato for Zoom link\n\nABSTRACT: In the 
 survey paper by Van Dam\, Koolen and Tanaka\n(Distance-regular graphs\, El
 ectron. J. Comb.\, Dynamic Survey (2016)\,\n\\#DS22)\, they asked to class
 ify the thin $Q$-polynomial\ndistance-regular graphs. In this talk\, we wi
 ll discuss our result\nwhich states that the Grassmann graphs with large d
 iameter are\ncharacterized by their intersection numbers under the extra c
 ondition\nthat they are thin.\n\nThis is joint work with Jack Koolen and Y
 ing-Ying Tan.
DTSTAMP:20260404T183035Z
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