Polycyclic groups of diffeomorphisms of the closed interval

Matsuda, Yoshifumi

Comptes Rendus. Mathématique, Volume 347 (2009) p. 813-816

Groups of real analytic diffeomorphisms of the circle with a finite image under the rotation number function

Matsuda, Yoshifumi

Annales de l'Institut Fourier, Volume 59 (2009) p. 1819-1845