# American Institute of Mathematical Sciences

June  2009, 24(2): 349-366. doi: 10.3934/dcds.2009.24.349

## On dynamical systems close to a product of $m$ rotations

 1 Hasselt University, Agoralaan, gebouw D, B-3590 Diepenbeek 2 Department of Mathematics FUNDP, Rempart de la Vierge, 8, B-5000 Namur, Belgium 3 Departament de Matemàtica Aplicada i Anàlisi, Universitat de Barcelona, Gran Via, 585, 08007 Barcelona

Received  May 2007 Revised  June 2008 Published  March 2009

We consider one parameter families of analytic vector fields and diffeomorphisms, including for a parameter value, say $\varepsilon = 0$, the product of rotations in $\R^{2m}\times \R^n$ such that for positive values of the parameter the origin is a hyperbolic point of saddle type. We address the question of determining the limit stable invariant manifold when $\varepsilon$ goes to zero as a subcenter invariant manifold when $\varepsilon = 0$.
Citation: Patrick Bonckaert, Timoteo Carletti, Ernest Fontich. On dynamical systems close to a product of $m$ rotations. Discrete and Continuous Dynamical Systems, 2009, 24 (2) : 349-366. doi: 10.3934/dcds.2009.24.349
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