Abstract
We study small perturbations of three linear Delay DifferentialEquations (DDEs) close to Hopf bifurcation points. In analytical treatments of such equations, many authors recommend a center manifold reductionas a first step. We demonstrate that the method of multiple scales, onsimply discarding the infinitely many exponentially decaying components of the complementary solutionsobtained at each stage of the approximation,can bypass the explicit center manifold calculation.Analytical approximations obtained for the DDEs studied closely matchnumerical solutions.
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Das, S.L., Chatterjee, A. Multiple Scales without Center Manifold Reductions for Delay Differential Equations near Hopf Bifurcations. Nonlinear Dynamics 30, 323–335 (2002). https://doi.org/10.1023/A:1021220117746
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DOI: https://doi.org/10.1023/A:1021220117746