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Examination of a system of differential equations with a small parameter in the highest derivatives. (English. Russian original) Zbl 0289.34083

Sov. Math., Dokl. 14, 483-487 (1973); translation from Dokl. Akad. Nauk SSSR 209, 576-579 (1973).

MSC:

34E15 Singular perturbations for ordinary differential equations
34C05 Topological structure of integral curves, singular points, limit cycles of ordinary differential equations
34D15 Singular perturbations of ordinary differential equations
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