Referências: |
Bryuno, A. D., Formal Stability of Hamiltonian Systems, Matematicheskie
Zametki, Vol. 1, No. 3, pp. 325-330 (1967)
Meyer, K., Hall, G., Offin, D. Introduction to Hamiltonian Dynamical
Systems and the N-Body Problem, Springer (2009)
Siegel, C. L., Moser, J., Lectures on Celestial Mechanics. Springer (1971). |