On two conjectures concerning quadratic differential systems

zbMATH Open0891.34034MaRDI QIDQ1377219

Xiang Zhang

Publication date: 3 March 1998

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

zbMATH Keywords

limit cyclesfocusquadratic differential systemDulac function

Mathematics Subject Classification ID

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

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Title not available (Why is that?) ⋮ Title not available (Why is that?) ⋮ Quadratic systems with an invariant conic having Darboux invariants ⋮ ON HEROD'S QUADRATIC DIFFERENTIAL SYSTEM WITH INFINITELY MANY UNKNOWNS ⋮ Title not available (Why is that?) ⋮ The canonical solutions of the \(Q\)-systems and the Kirillov-Reshetikhin conjecture ⋮ Title not available (Why is that?)

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