F. Güngör, J. Llibre, C. Pantazi.
Darboux integrability and dynamics of the Basener-Ross population model.
Rend. Circ. Mat. Palermo (2), 1-13. 2020. [DOI]
PreprintAbstractPreprint at DDDUAB

M. Han, J. Llibre, Y. Tian.
On the zero-Hopf bifurcatIon of the Lotka-Volterra systems in $R^3$.
Mathematics, 8, 1137:1-14. 2020. [DOI]
PreprintAbstractPreprint at DDDUAB

J. Huang, J. Torregrosa, J. Villadelprat.
On the number of limit cycles in generalized Abel equations.
SIAM J. Appl. Dyn. Syst., 19(4), 2343-2370. 2020. [DOI]
PreprintAbstractPreprint at DDDUAB

F. Ikhouane, V. Mañosa, G. Pujol.
Minor loops of the Dahl and LuGre models.
Appl. Math. Model., 77, 1679-1690. 2020. [DOI]
PreprintAbstractPreprint at DDDUAB

J. J. Jimenez Ruiz.
On the crossing limit cycles for piecewise linear differential systems on the plane.
PhD thesis, Universidade Federal de Goiás, Instituto de Matemática e Estatística, October, 2020.
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J. J. Jimenez Ruiz, J. Llibre, J. C. Medrado.
Crossing limit cycles for a class of piecewise linear differential centers separated by a conic.
Electron. J. Differential Equations, 41, 1-36. 2020.
PreprintAbstractPreprint at DDDUAB

J. J. Jimenez Ruiz, J. Llibre, J. C. Medrado.
Crossing limit cycles for piecewise linear differential centers separated by a reducible cubic curve.
Electron. J. Qual. Theory Differ. Equ., 2020(19), 1-48. 2020. [DOI]
PreprintAbstractPreprint at DDDUAB

D. Juher, D. Rojas, J. Saldaña.
Robustness of behaviourally-induced oscillations in epidemic models under a low rate of imported cases.
Phys. Rev. E, 102(5), 052301: 1-15. 2020. [DOI]
PreprintAbstractPreprint at DDDUAB

S. Li, J. Llibre.
Phase portraits of planar piecewise linear refracting systems: Focus-Saddle case.
Nonlinear Anal. Real World Appl., 56, 103153:1-11. 2020. [DOI]
PreprintAbstractPreprint at DDDUAB

J. Llibre.
On the centers of cubic polynomial differential systems with four invariant straight lines.
Topol. Methods Nonlinear Anal., 55(2), 387-402. 2020. [DOI]
PreprintAbstractPreprint at DDDUAB

J. Llibre, B. D. Lopes, J. R. Moraes.
Periodic solutions of continuous third-order differential equations with piecewise polynomial nonlinearities.
Internat. J. Bifur. Chaos Appl. Sci. Engrg., 30(11), 2050158 (7 pages). 2020. [DOI]
PreprintAbstractPreprint at DDDUAB

J. Llibre, A. Makhlouf.
Periodic solutions for a class of non-autonomous Newton differential equations.
Differ. Equ. Dyn. Syst., 28(2), 373-379. 2020. [DOI]
PreprintAbstractPreprint at DDDUAB

J. Llibre, A. Makhlouf.
On the periodic solutions of the relativistic driven harmonic oscillator.
J. Math. Phys., 61, 012501:1-6. 2020. [DOI]
PreprintAbstractPreprint at DDDUAB

J. Llibre, A. Makhlouf.
Zero-Hopf periodic orbits for a Rössler differential system.
Internat. J. Bifur. Chaos Appl. Sci. Engrg., 30(12), 2050170 (6 pages). 2020. [DOI]
PreprintAbstractPreprint at DDDUAB

J. Llibre, Y. P. Martinez Mancilla.
Dynamics of a family of Lotka-Volterra systems in $R^3$.
Nonlinear Anal., 199, 111915:1-15. 2020. [DOI]
PreprintAbstractPreprint at DDDUAB

J. Llibre, Y. P. Martinez Mancilla.
Dynamics of a competitive Lotka-Volterra systems in $R^3$.
Acta Appl. Math., 170, 569-577. 2020. [DOI]
PreprintAbstractPreprint at DDDUAB

J. Llibre, Y. P. Martinez Mancilla, C. Valls.
On the global dynamics of a three-dimensional forced-damped differential system.
J. Nonlinear Math. Phys., 27(3), . 2020. [DOI]
PreprintAbstractPreprint at DDDUAB

J. Llibre, Y. P. Martinez Mancilla, C. Valls.
Global dynamics of a Lotka-Volterra system in $R^3$.
J. Nonlinear Math. Phys., 27(3), 509-519. 2020. [DOI]
PreprintAbstractPreprint at DDDUAB

J. Llibre, Y. P. Martinez Mancilla, C. Valls.
Limit cycles bifurcating of Kolmogorov systems in $R^2$ and in $R^3$.
Commun. Nonlinear Sci. Numer. Simul., 91, 105401:1-10. 2020. [DOI]
PreprintAbstractPreprint at DDDUAB

J. Llibre, Y. P. Martinez Mancilla, C. Vidal.
Limit cycles of a perturbation of a polynomial Hamiltonian systems of degree 4 symmetric with respect to the origin.
Canad. Math. Bull., 63(3), 547-561. 2020. [DOI]
PreprintAbstractPreprint at DDDUAB