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СЕМИНАРЫ |
Петербургский семинар по теории представлений и динамическим системам
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Two types of KAM-nondegenerate nearly integrable systems with positive metric entropy D. Chen Pennsylvania State University |
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Аннотация: The celebrated KAM Theory says that if one makes a small perturbation of a non-degenerate completely integrable system, there is still an overwhelming measure of invariant tori with quasi-periodic dynamics in the perturbed system. These invariant tori are known as KAM tori. What happens outside KAM tori draws a lot of attention. In this talk I will present two types of Язык доклада: английский |