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Dynamics , Pertubation
Closing Lemma for Diffeomorphism (Dynamical Systems) ★★★★
Author(s): Charles Pugh
Conjecture Let
and
. Then for any neighborhood
there is
such that
is periodic point of
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


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There is an analogous conjecture for flows ( vector fields . In the case of diffeos this was proved by Charles Pugh for
. In the case of Flows this has been solved by Sushei Hayahshy for
. But in the two cases the problem is wide open for
Keywords: Dynamics , Pertubation
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