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math.DS2020
On two-frequency quasi-periodic perturbations of systems close to two-dimensional Hamiltonian ones with a double limit cycle
O. S. Kostromina
The problem of the effect of two-frequency quasi-periodic perturbations on systems close to arbitrary nonlinear two-dimensional Hamiltonian ones is studied in the case when the cor…
math.DS2014★ 7 cited
On periodic perturbations of asymmetric Duffing-Van-der-Pol equation
Albert D. Morozov, Olga S. Kostromina
Time-periodic perturbations of an asymmetric Duffing-Van-der-Pol equation close to an integrable equation with a homoclinic "figure-eight" of a saddle are considered. The behavior…