J. Llibre, L. F. Mello, E. Pérez-Chavela.
New stacked central configurations for the planar 5-body problem.
Celestial Mech. Dynam. Astronom., 110, 43-52. 2011. [DOI]
AbstractPreprint at DDDUAB

J. Llibre, A. C. Mereu.
Limit cycles for a generalized Kukles polynomial differential systems.
Nonlinear Anal., 74, 1261-1271. 2011. [DOI]
AbstractPreprint at DDDUAB

J. Llibre, M. Messias, P. R. Silva.
Global dynamics of stationary solutions of the extended Fisher-Kolmogorov equation.
J. Math. Phys., 52, 112701. 2011. [DOI]
AbstractPreprint at DDDUAB

J. Llibre, D. D. Novaes, M. A. Teixeira.
On the periodic solutions of a perturbed double pendulum.
Sao Paulo J. Math. Sci., 5(2), 317-330. 2011. [DOI]
AbstractPreprint at DDDUAB

J. Llibre, E. Pérez-Chavela.
Limit cycles for a class of second order differential equations.
Phys. Lett. A, 375, 1080-1083. 2011. [DOI]
AbstractPreprint at DDDUAB

J. Llibre, E. Ponce, J. Ros.
Algebraic determination of limit cycles in 3-dimensional piecewise linear differential systems.
Nonlinear Anal., 74, 6712-6727. 2011. [DOI]
AbstractPreprint at DDDUAB

J. Llibre, R. O. Ramírez, N. Sadovskaia.
On the 16th Hilbert problem for limit cycles on nonsingular algebraic curves.
J. Differential Equations, 250, 983-999. 2011. [DOI]
AbstractPreprint at DDDUAB

J. Llibre, R. O. Ramírez, N. Sadovskaia.
Planar vector fields with a given set of orbits.
J. Dyn. Diff. Equat., 23(4), 885-902. 2011. [DOI]
AbstractPreprint at DDDUAB

J. Llibre, S. Rebollo-Perdomo, J. Torregrosa.
Limit cycles bifurcating from a 2-dimensional isochronous torus in $ R^3$.
Adv. Nonlinear Stud., 11, 377-389. 2011. [DOI]
PreprintAbstractPreprint at DDDUAB

J. Llibre, S. Rebollo-Perdomo, J. Torregrosa.
Limit cycles bifurcation from isochronous surfaces of revolution in $ R^3$.
J. Math. Anal. Appl., 381, 414-426. 2011. [DOI]
PreprintAbstractPreprint at DDDUAB

J. Llibre, L. A. Roberto.
On the periodic orbits and the integrability of the regularized Hill lunar problem.
J. Math. Phys., 52(8), 082701. 2011. [DOI]
AbstractPreprint at DDDUAB

J. Llibre, R. Saghin.
The index of singularities of vector fields and finite jets.
J. Differential Equations, 251, 2822-2832. 2011. [DOI]
AbstractPreprint at DDDUAB

J. Llibre, C. Stoica.
Comet and Hill-type periodic orbits in restricted (n+1)-body problems.
J. Differential Equations, 250, 1747-1766. 2011. [DOI]
AbstractPreprint at DDDUAB

J. Llibre, G. Swirszcz.
On the limit cycles of polynomial vector fields.
Dyn. Contin. Discrete Impuls. Syst. Ser A: Math Anal., 18, 203-221. 2011.
AbstractPreprint at DDDUAB

J. Llibre, C. Valls.
Classification of the centers and their isochronicity for a class of polynomial differential systems of arbitrary degree.
Adv. Math., 227, 472-493. 2011. [DOI]
AbstractPreprint at DDDUAB

J. Llibre, C. Valls.
Analytic integrability of quadratic-linear polynomial differential systems.
Ergodic Theory Dynam. Systems, 31, 245-258. 2011. [DOI]
AbstractPreprint at DDDUAB

J. Llibre, C. Valls.
Hopf bifurcation for some analytic differential systems in $ R^3$ via averaging theory.
Discrete Contin. Dyn. Syst., 30(3), 779-790. 2011. [DOI]
AbstractPreprint at DDDUAB

J. Llibre, C. Valls.
On the $\mathcal C^1$ non-integrability of differential systems via periodic orbits.
European J. Appl. Math., 22, 381-391. 2011. [DOI]
AbstractPreprint at DDDUAB

J. Llibre, C. Valls.
On the $\mathcal C^1$ non-integrability of the Belousov-Zhabotinskii system.
Comput. Math. Appl., 62, 2342-2348. 2011. [DOI]
AbstractPreprint at DDDUAB

J. Llibre, C. Valls.
Polynomial, rational and analytic first integrals for a family of 3-dimensional Lotka-Volterra systems.
Z. Angew. Math. Phys., 62, 761-777. 2011. [DOI]
AbstractPreprint at DDDUAB