Lazutkin, V. F. Examples of diffeomorphisms of a circle. (English) Zbl 0492.58019 Vestn. Leningr. Univ., Math. 10, 55-62 (1982). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page MSC: 37-XX Dynamical systems and ergodic theory 57R50 Differential topological aspects of diffeomorphisms Keywords:diffeomorphisms of the circle; smoothness class of the coordinate change which transforms a diffeomorphism into a rotation of the circle; Diophantine rotation numbers Citations:Zbl 0349.58003 PDFBibTeX XMLCite \textit{V. F. Lazutkin}, Vestn. Leningr. Univ., Math. 10, 55--62 (1982; Zbl 0492.58019)