Authors: Yang, Ren Zi Xu, Jun Xiang

Citation: Yang, Ren Zi et Xu, Jun Xiang, Effective Reducibility of a Class of Linear Differential Equations with Quasiperiodic Coefficients, Acta mathematica Sinica. English series (Print) , 20(3), 2004, pp. 525-532

Authors: Zhang, Dong Feng Xu, Jun Xiang

Citation: Zhang, Dong Feng et Xu, Jun Xiang, Invariant hyperbolic tori for Gevrey-smooth Hamiltonian systems under Rüssmann.s non-degeneracy condition, Acta mathematica Sinica. English series (Print) , 24(10), 2008, pp. 1625-1636