On a condition for a centre of cubic non-autonomous equations

DOI10.1017/S030821050002415XzbMath0685.34025MaRDI QIDQ4735429

M. A. M. Alwash

Publication date: 1989

Published in: Proceedings of the Royal Society of Edinburgh: Section A Mathematics (Search for Journal in Brave)

zbMATH Keywords

centre of cubic equations

Mathematics Subject Classification ID

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

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Cites Work

• A survey of quadratic systems
• Non-autonomous equations related to polynomial two-dimensional systems