scientific article; zbMATH DE number 1390446

zbMath0938.34020MaRDI QIDQ4935835

Xiang-Lai Zhuo, Mao'an Han

Publication date: 17 January 2000

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zbMATH Keywords

limit cycleDulac functiontwo-dimensional system\(n\)-connected region

Mathematics Subject Classification ID

Topological structure of integral curves, singular points, limit cycles of ordinary differential equations (34C05) Theory of limit cycles of polynomial and analytic vector fields (existence, uniqueness, bounds, Hilbert's 16th problem and ramifications) for ordinary differential equations (34C07)

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