• Title of article

    A distance regular graph with intersection array (21,16,8;1,4,14) does not exist

  • Author/Authors

    K. Coolsaet، نويسنده , , K.، نويسنده ,

  • Issue Information
    روزنامه با شماره پیاپی سال 2005
  • Pages
    8
  • From page
    709
  • To page
    716
  • Abstract
    We show that a distance regular graph Γ with intersection array (21,16,8;1,4,14) does not exist. The proof uses algebraic properties of a positive semidefinite matrix related to the neighbourhood of a vertex of Γ.
  • Keywords
    Minimal idempotent , Distance regular graph
  • Journal title
    European Journal of Combinatorics
  • Serial Year
    2005
  • Journal title
    European Journal of Combinatorics
  • Record number

    1548827

    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=10&DC=1548827