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scientific article; zbMATH DE number 4125836
| Language | Label | Description | Also known as |
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| English | No label defined |
scientific article; zbMATH DE number 4125836 |
Statements
1989
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Hilbert's 16th problem
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limit cycles
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planar autonomous differential systems
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Separatrix cycles
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Dulac's Theorem
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Ye Yanqian's classification
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quadratic differential systems
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