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 theorem is applied to classical nonlinear PDE's with one-dimensional space variable such as the nonlinear string and nonlinear Schr""dinger equation and show that the equations have ""regular"" (=time-quasiperiodic and time-periodic) solutions in rich supply. These results cannot be obtained by other techniques. The book will thus be of interest to mathematicians and physicists working with nonlinear PDE's. An extensive summary of the results and of related topics is provided in the Introduction. All the nontraditional material used is discussed in the first part of the book and in five appendices.
By:
Sergej B. Kuksin Imprint: Springer-Verlag Berlin and Heidelberg GmbH & Co. K Country of Publication: Germany Edition: 1993 ed. Volume: 1556 Dimensions:
Height: 235mm,
Width: 155mm,
Spine: 7mm
Weight: 454g ISBN:9783540571612 ISBN 10: 3540571612 Series:Lecture Notes in Mathematics Pages: 104 Publication Date:03 November 1993 Audience:
College/higher education
,
Professional and scholarly
,
Further / Higher Education
,
Undergraduate
Format:Paperback Publisher's Status: Active
Symplectic structures and hamiltonian systems in scales of hilbert spaces.- Statement of the main theorem and its consequences.- Proof of the main theorem.