Nearly Integrable Infinite-Dimensional H
β
Sergej B. Kuksin
π
Library
π
1993
π
Springer
π
English
β 831 KB
The book is devoted to partial differential equations of Hamiltonian form, close to integrable equations. For such equations a KAM-like theorem is proved, stating that solutions of the unperturbed equation that are quasiperiodic in time mostly persist in the perturbed one. The theor