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This article is cited in 4 scientific papers (total in 4 papers)
A restricted version of Hilbert's 16th problem for quadratic vector fields
Yu. Ilyashenkoabcd, Jaume Llibree a Moscow State Universitie, Moscow
b Steklov Math. Institute, Moscow
c Moscow Independent Universitie, Moscow
d Cornell University, US
e Departament de Matemàtiques, Universitat Autònoma de Barcelona, Barcelona, Catalonia, Spain
Abstract:
The restricted version of Hilbert's 16th problem for quadratic vector fields requires an upper estimate of the number of limit cycles through a vector parameter that characterizes the vector fields considered and the limit cycles to be counted. In this paper we give an upper estimate of the number of limit cycles of quadratic vector fields "$\sigma$-distant from centers and $\kappa$-distant from singular quadratic vector fields" provided that the limit cycles are "$\sigma$-distant from singular points and infinity".
Key words and phrases:
limit cycles, quadratic systems.
Received: February 4, 2010
Citation:
Yu. Ilyashenko, Jaume Llibre, “A restricted version of Hilbert's 16th problem for quadratic vector fields”, Mosc. Math. J., 10:2 (2010), 317–335
Linking options:
https://www.mathnet.ru/eng/mmj382 https://www.mathnet.ru/eng/mmj/v10/i2/p317
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Abstract page: | 356 | References: | 73 |
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