In this paper we consider the problem of the boundedness of all solutions for the oscillator where ! ยฟ 0 and ! โ N , g(x) is bounded and p(t) = p(t + 2 ). Since the system in general is non-Hamiltonian, we have to introduce reversibility assumptions to apply the twist theorem for reversible maps. U
Renormalization for breakup of invariant tori
โ Scribed by A. Apte; A. Wurm; P.J. Morrison
- Publisher
- Elsevier Science
- Year
- 2005
- Tongue
- English
- Weight
- 172 KB
- Volume
- 200
- Category
- Article
- ISSN
- 0167-2789
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โฆ Synopsis
We present renormalization group operators for the breakup of invariant tori with winding numbers that are quadratic irrationals. We find the simple fixed points of these operators and interpret the map pairs with critical invariant tori as critical fixed points. Coordinate transformations on the space of maps relate these fixed points, and also induce conjugacies between the corresponding operators.
๐ SIMILAR VOLUMES
Two numerical methods are presented for the determination of invariant tori bifurcation points on a branch of periodic solutions of ordinary differential equations (lumped parameter systems). The methods are based on the shooting technique and the Newton method. The coefficients of characteristic po