A. C. Fernandes, B. A. Garcia, J. Llibre, L. F. Mello.
New central configurations of the (n+1)-body problem.
J. Geom. Phys., 124, 199-207. 2018. [DOI]
PreprintAbstractPreprint at DDDUAB

A. Ferragut, J. Llibre.
Invariant curves and integrability of planar $C^r$ differential systems.
Rocky Mountain J. Math., 48(5), 1537-1550. 2018. [DOI]
PreprintAbstractPreprint at DDDUAB

A. Ferragut, C. Valls.
On the complete integrability of the Raychaudhuri differential system in $R^4$ and of a CRNT model in $R^5$.
Qual. Theory Dyn. Syst., 17, 291-307. 2018. [DOI]
PreprintAbstractPreprint at DDDUAB

A. Ferragut, C. Valls, C. Wiuf.
On the Liouville integrability of Edelstein's reaction system in $ R^3$.
Chaos Solitons Fractals, 108, 129-135. 2018. [DOI]
PreprintAbstractPreprint at DDDUAB

I. A. García, J. Llibre, S. Maza.
On the multiple zeros of a real analytic function with applications to the averaging theory of differential equations.
Nonlinearity, 31, 2666-2688. 2018. [DOI]
PreprintAbstractPreprint at DDDUAB

A. Gasull.
Integració de funcions racionals i $\pi$.
Mat. Mat., 2018(2), 28 pages. 2018.
PreprintAbstractFull PDFPreprint at DDDUAB

A. Gasull, H. Giacomini, M. Grau.
Localizing limit cycles: from numeric to analytical results.
In Extended Abstracts Summer 2016, Slow-Fast Systems and Hysteresis: Theory and Applications, 7-11. Springer Nature Switzerland, 2018. [DOI]
PreprintAbstractPreprint at DDDUAB

A. Gasull, M. Llorens, V. Mañosa.
Periodic points of a Landen transformation.
Commun. Nonlinear Sci. Numer. Simul., 64, 232-245. 2018. [DOI]
PreprintAbstractPreprint at DDDUAB

J. Giné, J. Llibre.
On the mechanisms for producing linear type centers in polynomial differential systems.
Mosc. Math. J., 18(3), 409-420. 2018. [DOI]
PreprintAbstractPreprint at DDDUAB

J. Giné, J. Llibre, C. Valls.
The cubic polynomial differential systems with two circles as algebraic limit cycles.
Adv. Nonlinear Stud., 18(1), 183-193. 2018. [DOI]
PreprintAbstractPreprint at DDDUAB

J. Giné, J. Llibre, C. Valls.
Simultaneity of centers in $Z_q$-equivariant systems.
Proc. R. Soc. Lond. Ser. A Math. Phys. Eng. Sci., 474, 20170811. 2018. [DOI]
PreprintAbstractPreprint at DDDUAB

M. Han, J. Llibre, J. Yang.
On uniqueness of limit cycles in general Bogdanov-Takens bifurcation.
Internat. J. Bifur. Chaos Appl. Sci. Engrg., 28(9), 1850115 (12 pages). 2018. [DOI]
PreprintAbstractPreprint at DDDUAB

H. He, J. Llibre, D. Xiao.
Hamiltonian with global centers (in chinese).
Scientia Sinica Mathematica, 48, 1-12. 2018. [DOI]
PreprintAbstract

J. Huang, H. Liang, J. Llibre.
Non-existence and uniqueness of limit cycles for planar polynomial differential systems with homogeneous nonlinearities.
J. Differential Equations, 265, 3888-3913. 2018. [DOI]
PreprintAbstractPreprint at DDDUAB

D. Juher, J. Saldaña.
Tuning the overlap and the cross-layer correlations in two-layer networks: application to an SIR model with awareness dissemination.
Phys. Rev. E, 97, 032303. 2018. [DOI]
PreprintAbstractPreprint at DDDUAB

J. Llibre, B. D. Lopes, J. R. Moraes.
Limit cycles bifurcating from the periodic orbits of the weight-homogeneous polynomial centers of weight-degree 3.
Electron. J. Differential Equations, 2018(118), 1-14. 2018.
PreprintAbstractPreprint at DDDUAB

J. Llibre, A. Makhlouf.
Periodic solutions for periodic second-order differential equations with variable potentials.
J. Appl. Anal., 24(2), 127-137. 2018. [DOI]
PreprintAbstractPreprint at DDDUAB

J. Llibre, Y. P. Martinez-Mancilla, C. Vidal.
Linear type centers of polynomial Hamiltonian systems with nonlinearities of degree 4 symmetric with respect to the y-axis.
Discrete Contin. Dyn. Syst. Ser. B, 23(2), 887-912. 2018. [DOI]
PreprintAbstractPreprint at DDDUAB

J. Llibre, R. M. Martins, D. J. Tonon.
Limit cycles of piecewise smooth differential equations on two dimensional torus.
J. Dyn. Diff. Equat., 30, 1011-1027. 2018. [DOI]
PreprintAbstractPreprint at DDDUAB

J. Llibre, M. Messias, A. C. Reinol.
Quadratic three-dimensional differential systems having invariant planes with total multiplicity nine.
Rend. Circ. Mat. Palermo (2), 67, 569-580. 2018. [DOI]
PreprintAbstractPreprint at DDDUAB