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
Link To Document :
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