Artículos de revistas
Limit cycles bifurcating from discontinuous centres
Date
2017-08-01Registration in:
Ima Journal Of Applied Mathematics. Oxford: Oxford Univ Press, v. 82, n. 4, p. 849-863, 2017.
0272-4960
10.1093/imamat/hxx017
WOS:000407267000009
WOS000407267000009.pdf
Author
Univ Fed Itajuba
Universidade Estadual Paulista (Unesp)
Institutions
Abstract
In this article, we study limit cycles in discontinuous piecewise linear vector fields in R-2 and R-3. More precisely, we address the problem of understanding the dynamics around a degenerated two-fold singularity in R-2 and R-3, where it is also called T-singularity, which behave as discontinuous centres after suitable perturbations of the separation boundaries. We prove that, in both systems, it is possible to obtain k hyperbolic limit cycles bifurcating from these discontinuous centres, for any positive integer k. The same holds if k is infinity.