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    • Analytic integrability around the origin of certain differential system 

      Giné, Jaume; Valls, Claudia (Wilmington Scientific Publisher, 2022)
      In this work we consider the polynomial differential system x˙=−y+xyn−1, y˙=x+ayxn−1, where a∈R and n≥2 with n∈N. This system is a certain generalization of the classical Liénard system. We study the center problem and ...