• Title of article

    Is the composite of two expansive maps expansive?

  • Author/Authors

    Roy، نويسنده , , Mario، نويسنده ,

  • Issue Information
    دوماهنامه با شماره پیاپی سال 2004
  • Pages
    6
  • From page
    17
  • To page
    22
  • Abstract
    We study the question whether the composite of two expansive maps is itself expansive. The answer to this question is a resounding no. We will actually establish a stronger fact. We will give an example of two dynamical systems which are topologically exact and Ruelle expanding with respect to two different, equivalent and compatible metrics, but whose composite is far from being expansive, for it is locally eventually contracting towards a fixed point a completely invariant, dense open subspace.
  • Keywords
    (Positively) expansive maps , Ruelle expanding maps , Composite , Symbolic Dynamics
  • Journal title
    Topology and its Applications
  • Serial Year
    2004
  • Journal title
    Topology and its Applications
  • Record number

    1576865