Amel’kin, V. V.; Lukashevich, N. A.; Sadovskiĭ, A. P. Nonlinear oscillations in systems of second order. (Нелинейные колебания в системах второго порядка.) (Russian) Zbl 0526.70024 Minsk: Izdatel’stvo BGU im. V. I. Lenina. 208 p. R. 1.90 (1982). Reviewer: M. E. Mayer Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 1 ReviewCited in 28 Documents MSC: 70Kxx Nonlinear dynamics in mechanics 70-02 Research exposition (monographs, survey articles) pertaining to mechanics of particles and systems 34-02 Research exposition (monographs, survey articles) pertaining to ordinary differential equations 34D20 Stability of solutions to ordinary differential equations Keywords:Lyapunov method; periodic motions for two-dimensional autonomous systems; center and focus systems; isochronous oscillations; isolated periodic orbits PDF BibTeX XML