scientific article; zbMATH DE number 3330152

zbMath0207.38902MaRDI QIDQ5608221

Yuanxun Qin

Publication date: 1967

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

Mathematics Subject Classification ID

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

Related Items (5)

Phase portraits of separable quadratic systems and a bibliographical survey on quadratic systems ⋮ Limit cycles in Kukles systems of arbitrary degree with invariant ellipse ⋮ Some criteria for the existence of limit cycles for quadratic vector fields. ⋮ Resolution of the Poincaré problem and nonexistence of algebraic limit cycles in family (I) of Chinese classification ⋮ Transcendental limit cycles via the structure of arbitrary degree invariant algebraic curves of polynomial planar vector fields

This page was built for publication: