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Investigation, by a generalized Briot-Bouquet method, of the behavior, close to singular initial values, of solutions of a nonautonomous differential system. (English) Zbl 0332.34008

MSC:

34A25 Analytical theory of ordinary differential equations: series, transformations, transforms, operational calculus, etc.
34M99 Ordinary differential equations in the complex domain
34C05 Topological structure of integral curves, singular points, limit cycles of ordinary differential equations
34C20 Transformation and reduction of ordinary differential equations and systems, normal forms
34D05 Asymptotic properties of solutions to ordinary differential equations
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