L. P. C. Cruz, A. C. Rezende, J. Torregrosa.
Coexistence of analytic and piecewise analytic limit cycles in planar piecewise quadratic differential systems.
To appear in Qual. Theory Dyn. Syst.
PreprintAbstract

D. Djedid, J. Llibre, A. Makhlouf.
4-Dimensional zero Hopf bifurcation of quadratic polynomial differential systems, via averaging theory.
To appear in J. Appl. Anal.
PreprintAbstract

A. Gasull.
Las desigualdades isoperimétrica y de Wirtinger.
To appear in Gac. R. Soc. Mat. Esp.
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L. Jiménez-Lara, J. Llibre.
The free Euler equations revisited.
To appear in Dyn. Contin. Discrete Impuls. Syst. Ser A: Math Anal.
PreprintAbstract

J. Llibre, R. A. T. Santos.
Limit cycles of discontinuous piecewise linear differential systems with two zones separated by a parabola.
To appear in Discrete Contin. Dyn. Syst. Ser. B
PreprintAbstract

D. Marín, L. Queiroz, J. Villadelprat.
The period of the limit cycle bifurcating from a persistent polycycle.
To appear in Publ. Mat.
PreprintAbstract