Article contents
ANALYTIC REDUCIBILITY OF RESONANT COCYCLES TO A NORMAL FORM
Published online by Cambridge University Press: 27 November 2014
Abstract
We consider systems of quasi-periodic linear differential equations associated to a ‘resonant’ frequency vector ${\it\omega}$, namely, a vector whose coordinates are not linearly independent over $\mathbb{Z}$. We give sufficient conditions that ensure that a small analytic perturbation of a constant system is analytically conjugate to a ‘resonant cocycle’. We also apply our results to the non-resonant case: we obtain sufficient conditions for reducibility.
- Type
- Research Article
- Information
- Journal of the Institute of Mathematics of Jussieu , Volume 15 , Issue 1 , January 2016 , pp. 203 - 223
- Copyright
- © Cambridge University Press 2014
References
- 5
- Cited by