References
M. R. Herman,Sur la conjugaison différentiable des difféomorphismes du cercle a des rotations, Publications Mathématiques I.H.E.S.49 (1979), 5–234; see also P. Deligne,Les Difféomorphismes du cercle (d'après M. R. Herman), Séminaire Bourbaki477, Fevrier 1976.
Y. Katznelson,Sigma-finite invariant measures for smooth mappings of the circle, J. Analyse Math.31 (1977), 1–18.
Y. Katznelson and B. Weiss,Notes on orbit-equivalence, to appear.
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Katznelson, Y. The action of diffeomorphism of the circle on the Lebesgue measure. J. Anal. Math. 36, 156–166 (1979). https://doi.org/10.1007/BF02798775
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DOI: https://doi.org/10.1007/BF02798775