Number of limit cycles of the bounded quadratic system with two finite singular points

zbMath0526.34018MaRDI QIDQ595086

Xin'an Yang

Publication date: 1983

Published in: Chinese Annals of Mathematics. Series B (Search for Journal in Brave)

zbMATH Keywords

limit cyclestationary pointspolynomial differential equationHilbert's sixteenth problemquadratic differential equations

Mathematics Subject Classification ID

Periodic solutions to ordinary differential equations (34C25) Topological structure of integral curves, singular points, limit cycles of ordinary differential equations (34C05) Bifurcations of limit cycles and periodic orbits in dynamical systems (37G15)

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