## CEMAPRE Seminar

### Renormalization of flows, invariant tori and reducibility

Saa Kocić
(CEMAPRE - ISEG)

Abstract: I will describe the construction of a renormalization schemes for vector fields on $\mathbb T^d\times \mathbb R^m$ and skew product flows on $\mathbb T^d\times \operatorname{SL}(2,\mathbb R)$. I will also discuss the applications of these schemes to the construction of invariant tori in near integrable systems in the former case, and to reducibility problems in the latter case.

Friday, March 14, 2008
Time: 15h30
Room: Sala CTT, Edificio Quelhas, ISEG
http://cemapre.iseg.ulisboa.pt/seminars/cemapre/