Two existence theorems of periodic solutions for differential delay equations (Q1333944)
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scientific article; zbMATH DE number 640441
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Two existence theorems of periodic solutions for differential delay equations |
scientific article; zbMATH DE number 640441 |
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Two existence theorems of periodic solutions for differential delay equations (English)
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24 October 1994
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An error in the paper [\textit{K. Wang}, Chin. Ann. Math. Ser. B 11, No. 4, 438-444 (1990; Zbl 0729.34047)] is pointed out. Under new assumptions, existence of periodic solutions is proved for the equation \(x'(t) = f(x(t), x(t-1))\).
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delay equations
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periodic solutions
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0.96120775
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0.95402586
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0.9486855
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0.9484867
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