Physics – Mathematical Physics
Scientific paper
2005-01-22
J. Nonlin. Math. Phys. 12 (2005), S1 327-342
Physics
Mathematical Physics
16 pages
Scientific paper
Integration of nonlinear dynamical systems is usually seen as associated to a symmetry reduction, e.g. via momentum map. In Lax integrable systems, as pointed out by Kazhdan, Kostant and Sternberg in discussing the Calogero system, one proceeds in the opposite way, enlarging the nonlinear system to a system of greater dimension. We discuss how this approach is also fruitful in studying non integrable systems, focusing on systems in normal form.
Gaeta Giuseppe
Walcher S.
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