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NORMAL LINEAR STABILITY OF QUASI-PERIODIC TORI IN THE HAMILTONIAN 1 : -1 RESONANCE CASE
Book chapter

NORMAL LINEAR STABILITY OF QUASI-PERIODIC TORI IN THE HAMILTONIAN 1 : -1 RESONANCE CASE

H. W. Broer, J. Hoo and V. Naudot
EQUADIFF 2003, pp.708-713
WORLD SCIENTIFIC
Proceedings of the International Conference on Differential Equations
02/2005

Abstract

Quasiperiodicity (Org.: H. Hanßmann and H. Broer)
We consider the persistence problem of quasi-periodic, Floquet, Diophantine invariant tori in Hamiltonian vector fields. The standard KAM theory of [1, 2] deals with the case where the Floquet matrix has simple eigenvalues. In the present paper this result is generalized to the case of multiple eigenvalues, in particular to the case of normal 1 : -1 resonance.

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