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Existence of forced oscillations for some nonlinear differential equations - MaRDI portal

Existence of forced oscillations for some nonlinear differential equations (Q3715465)

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Existence of forced oscillations for some nonlinear differential equations
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    Existence of forced oscillations for some nonlinear differential equations (English)
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    1984
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    nonlinear second order ordinary differential equations
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    homotopy groups
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