• Title of article

    On the Gray index of phantom maps

  • Author/Authors

    Hà، نويسنده , , Lê Minh، نويسنده ,

  • Issue Information
    روزنامه با شماره پیاپی سال 2005
  • Pages
    13
  • From page
    217
  • To page
    229
  • Abstract
    We study a homotopy invariant of phantom maps called the Gray index. In particular, it is conjectured that the Gray index of an essential phantom map between finite-type spaces is always finite. We obtain some partial results on this conjecture, using a tower-theoretic interpretation of the Gray index.
  • Keywords
    Phantom map , Gray index , Image subtower , lim ? 1 , Inverse tower
  • Journal title
    Topology
  • Serial Year
    2005
  • Journal title
    Topology
  • Record number

    1545486

    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=10&DC=1545486