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http://hdl.handle.net/1942/39889
Title: | Slow-fast torus knots | Authors: | Jardón-Kojakhmetov, Hildeberto HUZAK, Renato |
Issue Date: | 2023 | Publisher: | BELGIAN MATHEMATICAL SOC TRIOMPHE | Source: | BULLETIN OF THE BELGIAN MATHEMATICAL SOCIETY-SIMON STEVIN, 29 (3) , p. 371 -388 | Abstract: | The goal of this paper is to study global dynamics of C∞-smooth slow-fast systems on the 2-torus of class C∞ using geometric singular perturbation theory and the notion of slow divergence integral. Given any m ∈ N and two relatively prime integers k and l, we show that there exists a slow-fast system Yϵ on the 2-torus that has a 2m-link of type (k, l), i.e. a (disjoint finite) union of 2m slow-fast limit cycles each of (k, l)-torus knot type, for all small ϵ > 0. The (k, l)-torus knot turns around the 2-torus k times meridionally and l times longitudinally. There are exactly m repelling limit cycles and m attracting limit cycles. Our analysis: a) proves the case of normally hyperbolic singular knots, and b) provides sufficient evidence to conjecture a similar result in some cases where the singular knots have regular nilpotent contact with the fast foliation. | Keywords: | Slow-fast systems;torus knots;limit cycles;slow divergence integral | Document URI: | http://hdl.handle.net/1942/39889 | Link to publication/dataset: | https://projecteuclid.org/journals/bulletin-of-the-belgian-mathematical-society-simon-stevin/volume-29/issue-3 | ISSN: | 1370-1444 | e-ISSN: | 2034-1970 | DOI: | https://doi.org/10.36045/j.bbms.220208 | ISI #: | 000965201100005 | Category: | A1 | Type: | Journal Contribution |
Appears in Collections: | Research publications |
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