Periodic Center Manifolds for DDEs in the Light of Suns and Stars
arXiv:2207.02480 · doi:10.1007/s10884-023-10289-9
Abstract
In this paper we prove the existence of a periodic smooth finite-dimensional center manifold near a nonhyperbolic cycle in classical delay differential equations by using the Lyapunov-Perron method. The results are based on the rigorous functional analytic perturbation framework for dual semigroups (sun-star calculus). The generality of the dual perturbation framework shows that the results extend to a much broader class of evolution equations.
41 pages