Monday, April 14, 2008

Renormalization of vector fields, and applications to invariant tori and reducibility problems

Sasa Kocic
(Universidade de Texas, Austin)

Abstract: I will describe the construction of renormalization schemes for vector fields on $\mathbb T^d \times \mathbb R^m$ and skew product flows on $\mathbb T^d \times SL (2,\mathbb R)$. 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 of skew product flows in the latter case.

Monday, April 14, 2008
Time: 14h30
Room: B3-01, Complexo Interdisciplinar, UL