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zbMath0482.34033MaRDI QIDQ3940129

Franz Spirig

Publication date: 1981

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

zbMATH Keywords

bifurcation invariant tori equilibrium point non- resonance condition perturbation of a two-dimensional system

Mathematics Subject Classification ID

Periodic solutions to ordinary differential equations (34C25) Perturbations of ordinary differential equations (34D10)

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