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Formulas for the amplitude of the van der Pol limit cycle through the homotopy analysis method
(Hindawi / Wiley, 2009)
info:eu-repo/semantics/article,
The limit cycle of the van der Pol oscillator, x¨+ε(x2−1)x˙+x=0, is studied in the plane (x,x˙) by applying the homotopy analysis method. A recursive set of formulas that approximate the amplitude and form of this limit ...