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zbMath0659.34031MaRDI QIDQ3808464

Driss Boularas

Publication date: 1988

Full work available at URL: https://eudml.org/doc/189956

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

zbMATH Keywords

center quadratic differential system affine invariant central-affine invariant

Mathematics Subject Classification ID

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

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