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Date: 28-6-2017
1784
Date: 21-5-2021
2248
Date: 10-8-2021
1893
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Let be a non-wandering point of a diffeomorphism of a compact manifold. The closing lemma concerns if can be arbitrarily well approximated with derivatives of order for each by so that is a periodic point of .
The closing lemma is the 10th of Smale's problems and remains unsettled.
REFERENCES:
Smale, S. "Mathematical Problems for the Next Century." Math. Intelligencer 20, No. 2, 7-15, 1998.
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