A closing lemma on the interval

An Improved Closing Lemma and a General Density Theorem

Charles Pugh · American Journal of Mathematics · 1967 · 220 citations

Measure Theory, Engineering, Improved Closing Lemma +4

ON SMOOTH MAPPINGS OF THE CIRCLE INTO ITSELF

Michael Jakobson · Mathematics of the USSR-Sbornik · 1971 · 82 citations

Integral Geometry, On Smooth Mappings, Topological Markov Chain +9

Continuous maps of the interval whose periodic points form a closed set

Ethan M. Coven, Gustav A. Hedlund · Proceedings of the American Mathematical Society · 1980 · 16 citations

Closed Interval, Recurrent Point, Periodic Points +2