Bifurcations from nondegenerate families of periodic solutions

Details Bifurcations from nondegenerate families of periodic solutions Bifurcations from nondegenerate families of periodic solutions

2009-09-24

arxiv.org/abs/0909.4350v2

Mathematics

Classical Analysis and ODEs

Scientific paper

By a nondegenerate $k$-parameterized family $K$ of periodic solutions we understand the situation when the geometric multiplicity of the multiplier +1 of the linearized on $K$ system equals to $k.$ Bifurcation of asymptotically stable periodic solutions from $K$ is well studied in the literature and different conditions have been proposeddepending on whether the algebraic multiplicity of +1 is $k$ or not (by Malkin, Loud, Melnikov, Yagasaki). In this paper we assume that the later is unknown. Asymptotic stability can not be understood in this case, but we demonstrate that the information about uniqueness of periodic solutions is still available. Moreover, we show that differentiability of the right hand sides is not necessary for the results of this kind and our theorems are proven under a kind of Lipschitz continuity.

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