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Publication:3993834
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zbMath0755.34026MaRDI QIDQ3993834

Wenhua Li, Pingguang Zhang

Publication date: 13 August 1992


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

zbMATH Keywords

limit cyclequadratic system


Mathematics Subject Classification ID

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


Related Items (3)

On the distribution and number of limit cycles for quadratic systems with two foci ⋮ On the number of limit cycles for the quadratic systems with a weak focus and a strong focus ⋮ Quadratic systems with a weak focus and a strong focus







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