Comments on “investigation of the proper
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A. Beléndez; T. Beléndez; A. Hernández; S. Gallego; M. Ortuño; C. Neipp
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Article
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2007
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Elsevier Science
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English
⚖ 150 KB
Two Lindstedt-Poinare´perturbation-based methods are used to solve the nonlinear differential equation of a nonlinear oscillator having the square of the angular frequency quadratic dependence on the velocity. Mickens published two interesting papers [J. Beatty, R.E. Mickens, A qualitative study of