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]
PreprintAbstractPreprint at DDDUAB

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]
PreprintAbstractPreprint at DDDUAB

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]
PreprintAbstractPreprint at DDDUAB

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]
PreprintAbstractPreprint at DDDUAB

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]
PreprintAbstractPreprint at DDDUAB

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]
PreprintAbstractPreprint at DDDUAB

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]
PreprintAbstractPreprint at DDDUAB

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]
PreprintAbstractPreprint at DDDUAB

M. Garrido.
Singularidades en el problema de los n cuerpos.
Masters thesis, Universidad de Granada, Granada (Spain), September, 2020.
Full PDF

A. Gasull.
AB y BA.
Gac. R. Soc. Mat. Esp., 23(3), 550. 2020.
PreprintFull PDFPreprint at DDDUAB

A. Gasull, A. Geyer, F. Mañosas.
A Chebyshev criterion with applications.
J. Differential Equations, 269, 6641-6655. 2020. [DOI]
PreprintAbstractPreprint at DDDUAB

A. Gasull, J. Giné, C. Valls.
Highest weak focus order for trigonometric Liénard equations.
Ann. Mat. Pur. Appl., 199, 1673-1684. 2020. [DOI]
PreprintAbstractPreprint at DDDUAB

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]
PreprintAbstractFull PDFPreprint at DDDUAB

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]
PreprintAbstractFull PDFPreprint at DDDUAB

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]
PreprintAbstractPreprint at DDDUAB

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

L. F. d. S. Gouveia.
Limit cycles of small amplitude in polynomial and piecewise polynomial planar vector fields.
PhD thesis, Universitat Autònoma de Barcelona, Bellaterra, January, 2020.
AbstractFull PDF