On C<sup>r</sup>-closing for flows on 2-manifolds
Carlos Gutierrez; Carlos Gutierrez; ICMC-USP, São Carlos and IMPA-Rio de Janeiro, ICMC-USP: Caixa Postal 66, 13560-970 Sao Carlos-SP, Brazil
Журнал:
Nonlinearity
Дата:
2000-11-01
Аннотация:
For some full measure subset B of the set of interval exchange transformations (IETs) the following is satisfied. Let X be a C<sup>r</sup>, 1 ≤ r ≤ ∞, vector field, with finitely many singularities, on a compact orientable surface M. Given a non-trivial recurrent point p∈M of X, the holonomy map around p is semi-conjugate to an IET E : [0,1)[0,1). If E∈B then there exists a C<sup>r</sup> vector field Y, arbitrarily close to X, in the C<sup>r</sup>-topology, such that Y has a closed trajectory passing through p.
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