A problem of relative cohomology for algebraic forms of \(\mathbb{R}^ 2\)

DOI10.1016/0040-9383(95)00019-4zbMath0849.58054OpenAlexW1978111033MaRDI QIDQ1913478

Michel Berthier

Publication date: 23 June 1996

Published in: Topology (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1016/0040-9383(95)00019-4

zbMATH Keywords

limit cyclesquadratic fieldsrelative cohomologyHilbert 16th problem

Mathematics Subject Classification ID

Bifurcations of limit cycles and periodic orbits in dynamical systems (37G15)

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