A Birkhoff-Lewis Type Result for a Semilinear Wave Equation (Q4731561)
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scientific article; zbMATH DE number 4117062
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | A Birkhoff-Lewis Type Result for a Semilinear Wave Equation |
scientific article; zbMATH DE number 4117062 |
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A Birkhoff-Lewis Type Result for a Semilinear Wave Equation (English)
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1990
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subharmonics
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