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.
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

L. F. d. S. Gouveia, J. Torregrosa.
24 crossing limit cycles in only one nest for piecewise cubic systems.
Appl. Math. Lett., 103, 106189. 2020. [DOI]
PreprintAbstractFull PDFPreprint at DDDUAB

J. L. G. Guirao, J. Llibre, W. Gao.
Topological entropy of continuous self-maps on closed surfaces.
J. Difference Equ. Appl., 26(2), 203-208. 2020. [DOI]
PreprintAbstractPreprint at DDDUAB

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.
Full PDF

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