L. P. C. Cruz, V. G. Romanovskii, J. Torregrosa.
The center and cyclicity problems for quadratic linear-like reversible systems.
Nonlinear Anal., 190, 111593: 1-19. 2020. [DOI]
PreprintAbstractPreprint at DDDUAB

L. P. C. Cruz, J. Torregrosa.
A Bendixson-Dulac theorem for some piecewise systems.
Nonlinearity, 33, 2455-2480. 2020. [DOI]
PreprintAbstractFull PDFPreprint at DDDUAB

A. F. Fonseca, J. Llibre, L. F. Mello.
Limit cycles in planar piecewise linear Hamiltonian systems with three zones without equilibrium points.
Internat. J. Bifur. Chaos Appl. Sci. Engrg., 30(11), 2050157 (8 pages). 2020. [DOI]
PreprintAbstractPreprint at DDDUAB

F. S. Dias, J. Llibre, C. Valls.
Global dynamics of a virus model with invariant algebraic surfaces.
Rend. Circ. Mat. Palermo (2), 69, 535-546. 2020. [DOI]
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A. Feddaoui, J. Llibre, A. Makhlouf.
4-dimensional zero-Hopf bifurcation for polynomial differentials systems with cubic homogeneous nonlinearities via averaging theory.
Int. J. Dyn. Syst. Differ. Equ., 10(4), 321-328. 2020. [DOI]
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A. Ferragut, J. Llibre.
On the polynomial solutions of the polynomial differential equations $yy'=a_0(x)+a_1(x)y+a_2(x)y^2+...+a_n(x)y^n$.
Indian J. Pure Appl. Math., 51, 217-232. 2020. [DOI]
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F. Gao, J. Llibre.
Periodic orbits of the two fixed centers problem with a variational gravitational field.
Celestial Mech. Dynam. Astronom., 132(6-7), art. no. 39. 2020. [DOI]
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F. Gao, J. Llibre.
Global dynamics of the Horava-Lifshitz cosmology with non-zero curvature and a wide range of potentials.
Eur. Phys. J. C Part. Fields, 80, 137:1-13. 2020. [DOI]
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J. D. García Saldaña, A. Gasull, H. Giacomini.
A new approach for the study of limit cycles.
J. Differential Equations, 269, 6269-6292. 2020. [DOI]
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J. D. García Saldaña, J. Llibre, C. Valls.
Nilpotent global centers of linear systems with cubic homogeneous nonlinearities.
Internat. J. Bifur. Chaos Appl. Sci. Engrg., 30(1), 2050010:1-12. 2020. [DOI]
PreprintAbstractPreprint at DDDUAB

J. D. García Saldaña, J. Llibre, C. Valls.
Linear type global centers of linear systems with cubic homogeneous nonlinearities.
Rend. Circ. Mat. Palermo (2), 69, 771-785. 2020. [DOI]
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A. Garijo, X. Jarque.
The secant map applied to a real polynomial with multiple roots.
Discrete Contin. Dyn. Syst., 40(12), 6783-6794. 2020. [DOI]
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M. Garrido.
Singularidades en el problema de los n cuerpos.
Masters thesis, Universidad de Granada, Granada (Spain), September, 2020.
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A. Gasull.
AB y BA.
Gac. R. Soc. Mat. Esp., 23(3), 550. 2020.
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A. Gasull, A. Geyer, F. Mañosas.
A Chebyshev criterion with applications.
J. Differential Equations, 269, 6641-6655. 2020. [DOI]
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A. Gasull, J. Giné, C. Valls.
Highest weak focus order for trigonometric Liénard equations.
Ann. Mat. Pur. Appl., 199, 1673-1684. 2020. [DOI]
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A. Gasull, V. Mañosa.
Periodic orbits of discrete and continuous dynamical systems via Poincaré-Miranda theorem.
Discrete Contin. Dyn. Syst. Ser. B, 25(2), 651-670. 2020. [DOI]
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A. Gasull, J. Torregrosa, X. Zhang.
Piecewise linear differential systems with an algebraic line of separation.
Electron. J. Differential Equations, 2020(19), 1-14. 2020. [DOI]
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J. Giné, J. Llibre.
Strongly formal weierstrass non-integrability for polynomial differential systems in $C^2$.
Electron. J. Qual. Theory Differ. Equ., 2020(1), 1-16. 2020. [DOI]
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J. Giné, J. Llibre.
Formal Weierstrass nonintegrability criterion for some classes of polynomial differential systems in $C^2$.
Internat. J. Bifur. Chaos Appl. Sci. Engrg., 30(4), 2050064:1-7. 2020. [DOI]
PreprintAbstractPreprint at DDDUAB