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AuthorLazutkin, Vladimir F. author
TitleKAM Theory and Semiclassical Approximations to Eigenfunctions [electronic resource] / by Vladimir F. Lazutkin
ImprintBerlin, Heidelberg : Springer Berlin Heidelberg, 1993
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Descript IX, 387 p. online resource


It is a surprising fact that so far almost no books have been published on KAM theory. The first part of this book seems to be the first monographic exposition of this subject, despite the fact that the discussion of KAM theory started as early as 1954 (Kolmogorov) and was developed later in 1962 by Arnold and Moser. Today, this mathematical field is very popular and well known among physicists and mathematicians. In the first part of this Ergebnisse-Bericht, Lazutkin succeeds in giving a complete and self-contained exposition of the subject, including a part on Hamiltonian dynamics. The main results concern the existence and persistence of KAM theory, their smooth dependence on the frequency, and the estimate of the measure of the set filled by KAM theory. The second part is devoted to the construction of the semiclassical asymptotics to the eigenfunctions of the generalized Schrรถdinger operator. The main result is the asymptotic formulae for eigenfunctions and eigenvalues, using Maslovs̀ operator, for the set of eigenvalues of positive density in the set of all eigenvalues. An addendum by Prof. A.I. Shnirelman treats eigenfunctions corresponding to the "chaotic component" of the phase space


List of General Mathematical Notations -- I. KAM Theory -- I. Symplectic Dynamical Systems -- II. KAM Theorems -- III. Beyond the Tori -- IV. Proof of the Main Theorem -- II. Eigenfunctions Asymptotics -- V. Laplace-Beltrami-Schrรถdinger Operator and Quasimodes -- VI. Maslovโ{128}{153}s Canonical Operator -- VII. Quasimodes Attached to a KAM Set -- Addendum (by A.I. Shnirelman). On the Asymptotic Properties of Eigenfunctions in the Regions of Chaotic Motion -- Appendix I. Manifolds -- Appendix II. Derivatives of Superposition -- Appendix III. The Stationary Phase Method -- References

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