Semistable limit cycles that bifurcate from centers

Hector Giacomini, Mireille Viano, Jaume Llibre

Research output: Contribution to journalArticleResearchpeer-review

4 Citations (Scopus)

Abstract

Suppose that the differential system ẋ = P0(x,y) + ∑i,j=1m aij(ε)xiy j ẏ = Q0(x,y) + ∑i,j=1m bij(ε)xiyj has a center at the origin for ε = 0, where P0,Q0, aij and b ij are analytic functions in their variables, such that a ij(0) = bij(0) = 0. We present an analytic method to compute the semistable limit cycles which bifurcate from the periodic orbits of the analytic center, up to an arbitrary order in the perturbation parameter ε. We also provide an algorithm for the computation of the saddle-node bifurcation hypersurface of limit cycles in the parameter space {a ij,bij}1≤i,j≤m. As an example, we apply the method to compute, first, the analytic expression of the unique semistable limit cycle of the Liénard system ẋ = y + ε(a1x + a3x3 + a5x5) = y + ∑ k=1∞ εk(a1kx + a 3kx3 + a3kx5), ẏ = -x, and second, an approximation of the saddle-node bifurcation surface of limit cycles in the parameter space (a1, a3, a5). Both computations are valid for ε sufficiently small.
Original languageEnglish
Pages (from-to)3489-3498
JournalInternational Journal of Bifurcation and Chaos in Applied Sciences and Engineering
Volume13
DOIs
Publication statusPublished - 1 Jan 2003

Keywords

  • Center-planar vector field
  • Limit cycle-bifurcation

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