No label defined (Q3972439)
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scientific article; zbMATH DE number 15789
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | No label defined |
scientific article; zbMATH DE number 15789 |
Statements
25 June 1992
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plane autonomous systems
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existence and location of limit cycles
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rotated vector fields
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conjectures
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