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scientific article; zbMATH DE number 5583097
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | No label defined |
scientific article; zbMATH DE number 5583097 |
Statements
22 July 2009
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variational structure
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\( Z^2\) group index theory
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neutral functional differential equations
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critical points
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periodic solutions
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