Now showing items 1-2 of 2

    • Integrability of Lotka-Volterra planar complex cubic systems 

      Dukaric, Masa; Giné, Jaume (World Scientific, 2016)
      In this paper we study the Lotka-Volterra complex cubic systems. We obtain necessary conditions of integrability for these systems with some restriction on the parameters. The sufficiency is proved for all conditions, ...
    • Reversible nilpotent centers with cubic homogeneous nonlinearities 

      Dukaric, Masa; Giné, Jaume; Llibre, Jaume (Elsevier, 2016)
      We provide 13 non--topological equivalent classes of global phase portraits in the Poincaré disk of reversible cubic homogeneous systems with a nilpotent center at origin, which complete the classification of the phase ...