Canonical perturbation theory of Anosov systems, and regularity results for the Livsic cohomology equation

R. de la Llave, J. M. Marco, R. Moriyón
1985 Bulletin of the American Mathematical Society  
doi:10.1090/s0273-0979-1985-15298-x fatcat:h7q2dyexkbcl3kjdpp44vumek4