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Proceedings of the American Mathematical Society

Published by the American Mathematical Society since 1950, Proceedings of the American Mathematical Society is devoted to shorter research articles in all areas of pure and applied mathematics.

ISSN 1088-6826 (online) ISSN 0002-9939 (print)

The 2020 MCQ for Proceedings of the American Mathematical Society is 0.85.

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An infinite class of periodic solutions of periodically perturbed Duffing equations at resonance
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by Tung Ren Ding PDF
Proc. Amer. Math. Soc. 86 (1982), 47-54 Request permission

Abstract:

In this paper, by using a generalized form of the Poincaré-Birkhoff Theorem, we demonstrate that the Duffing equation \[ \frac {{{d^2}x}} {{d{t^2}}} + g(x) = p(t)\quad ( \equiv p(t + 2\pi ))\] may also admit an infinite number of $2\pi$-periodic solutions even in a resonance case.
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Additional Information
  • © Copyright 1982 American Mathematical Society
  • Journal: Proc. Amer. Math. Soc. 86 (1982), 47-54
  • MSC: Primary 34C15; Secondary 34C25, 58F22
  • DOI: https://doi.org/10.1090/S0002-9939-1982-0663864-1
  • MathSciNet review: 663864