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zbMath0456.34027MaRDI QIDQ3905754

N. V. Pyzhkova, A. P. Sadovskij

Publication date: 1980

Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.

zbMATH Keywords

transformations isochronic centre

Mathematics Subject Classification ID

Topological structure of integral curves, singular points, limit cycles of ordinary differential equations (34C05) Transformation and reduction of ordinary differential equations and systems, normal forms (34C20)

Related Items (1)

On one conjecture in the theory of isochronous Liénard systems

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