scientific article

zbMath0459.34014MaRDI QIDQ3909324

G. S. Rychkov

Publication date: 1980

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

zbMATH Keywords

limit cycle

Mathematics Subject Classification ID

Topological structure of integral curves, singular points, limit cycles of ordinary differential equations (34C05) Nonlinear ordinary differential equations and systems (34A34)

Related Items (1)

Maximum number of limit cycles of the equation \((b_{20}x^2 + b_{11} xy + b_{02}y^2 + b_{00} ) dy = (a_{20}x^2 + a_{11} xy + a_{02}y^2 + a_{00} ) dx\) is two

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