کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4661288 1344419 2007 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An example on movable approximations of a minimal set in a continuous flow
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات هندسه و توپولوژی
پیش نمایش صفحه اول مقاله
An example on movable approximations of a minimal set in a continuous flow
چکیده انگلیسی

In the present paper the study of flows on n-manifolds in particular in dimension three, e.g., R3, 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 R3 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.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Topology and its Applications - Volume 154, Issue 6, 15 March 2007, Pages 1097-1106