Existence and multiplicity of periodic solutions for second-order systems at resonance (Q708539)
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scientific article; zbMATH DE number 5800011
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Existence and multiplicity of periodic solutions for second-order systems at resonance |
scientific article; zbMATH DE number 5800011 |
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Existence and multiplicity of periodic solutions for second-order systems at resonance (English)
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14 October 2010
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variational methods
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critical points
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saddle point theorem
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Sobolev's inequality
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