Freedom in small parameter expansion for nonlinear perturbations
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摘要: The freedom of choice the zero-order term in perturbative analysis harmonic oscillators that are perturbed by a nonlinear perturbation is investigated detail within framework method normal forms case unforced Duffing oscillator. It demonstrated leading to minimal (MNF) far best, indicating MNF may be way significantly improve convergence properties series relative traditional expansions.
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