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http://hdl.handle.net/1942/6029
Title: | Relations between Abelian integrals and limit cycles | Authors: | CAUBERGH, Magdalena Roussarie, R. |
Issue Date: | 2004 | Publisher: | SPRINGER | Source: | Normal forms, bifurcations and finiteness problems in differential equations, p. 1-32. | Series/Report: | NATO Science Series II: Mathematics, Physics and Chemistry | Series/Report no.: | 137 | Abstract: | Limit cycles bifurcating in an unfolding from a regular Hamiltonian cycle, are in general directly controlled by the zeroes of the associated Abelian integral. Our purpose here is to investigate to what extent the Abelian integral allows one to study the limit cycles which bifurcate from a singular Hamiltonian cycle. We focus on the study of the 2-saddle cycles unfoldings. We show that the number of bifurcating limit cycles can exceed the number of zeroes of the related Abelian integral, even in generic unfoldings. However, in the case where one connection remains unbroken in the unfolding, we show how 6 finite codimension of the Abelian integral leads to a finite upper bound on the local cyclicity. | Document URI: | http://hdl.handle.net/1942/6029 | ISBN: | 978-1-4020-1928-9 | ISI #: | 000221929600001 | Category: | C1 | Type: | Proceedings Paper | Validations: | ecoom 2005 |
Appears in Collections: | Research publications |
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