scientific article; zbMATH DE number 880661

zbMath0865.34024MaRDI QIDQ4878060

Yan Qian Ye

Publication date: 14 July 1997

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

zbMATH Keywords

quadratic systemHilbert's sixteenth problem

Mathematics Subject Classification ID

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

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