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Q3990290 - MaRDI portal

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scientific article; zbMATH DE number 37985
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scientific article; zbMATH DE number 37985

    Statements

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    28 June 1992
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    multifunctions
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    second order differential equation
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    periodic boundary conditions
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    existence theorems
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    lower and upper solutions method
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    Bernstein-Nagumo results
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    pendulum-like equation
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