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Parabolic fixed points and stability criteria for nonlinear Hill's equation

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Zeitschrift für angewandte Mathematik und Physik ZAMP Aims and scope Submit manuscript

Abstract.

We discuss the stability of parabolic fixed points of area-preserving mappings and obtain a new proof of a criterion due to Simó. These results are employed to discuss the stability of the equilibrium of certain periodic differential equations of newtonian type. An example is the pendulum of variable length. In this class of equations the First Lyapunov's Method does not apply but in many cases the stability can be characterized in terms of the variational equation.

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Authors and Affiliations

  1. Departamento de Matemática Aplicada, Facultad de Ciencias, Universidad de Granada, 18071 Granada, Spain, , , , , , ES

    D. Núñez & R. Ortega

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  1. D. Núñez
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  2. R. Ortega
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Received: July 12, 1999

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Núñez, D., Ortega, R. Parabolic fixed points and stability criteria for nonlinear Hill's equation. Z. angew. Math. Phys. 51, 890–911 (2000). https://doi.org/10.1007/PL00001528

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  • DOI: https://doi.org/10.1007/PL00001528

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