• Title of article

    An example on movable approximations of a minimal set in a continuous flow

  • Author/Authors

    ?indel??ov?، نويسنده , , Petra، نويسنده ,

  • Issue Information
    دوماهنامه با شماره پیاپی سال 2007
  • Pages
    10
  • From page
    1097
  • To page
    1106
  • Abstract
    In the present paper the study of flows on n-manifolds in particular in dimension three, e.g., R 3 , is motivated by the following question. Let A be a compact invariant set in a flow on X. Does every neighbourhood of A contain a movable invariant set M containing A? It is known that a stable solenoid in a flow on a 3-manifold has approximating periodic orbits in each of its neighbourhoods. The solenoid with the approximating orbits form a movable set, although the solenoid is not movable. Not many such examples are known. The main part of the paper consists of constructing an example of a set in R 3 that is not stable, is not a solenoid, and is approximated by Denjoy-like invariant sets instead of periodic orbits. As in the case of a solenoid, the constructed set is an inverse limit of its approximating sets. This gives a partial answer to the above question.
  • Keywords
    Denjoy-like sets , Continuous flows , minimal sets , Movability , stability , Adding machine
  • Journal title
    Topology and its Applications
  • Serial Year
    2007
  • Journal title
    Topology and its Applications
  • Record number

    1581220