Ll. Alsedà, D. Juher, J. Los, F. Mañosas.
Entropy stability and Milnor-Thurston invariants for Bowen-Series-like maps.
Ergodic Theory Dynam. Systems, 46, 337-372. 2026. [DOI]
PreprintAbstractFull PDFPreprint at DDDUAB

M. Álvarez-Ramírez, E. Barrabés, J. M. Cors.
On equilateral central configurations in the 1+4 body problem.
Commun. Nonlinear Sci. Numer. Simul., 152(109365), 14 pages. 2026. [DOI]
PreprintAbstractPreprint at DDDUAB

M. Álvarez-Ramírez, J. D. García Saldaña, J. Llibre.
Integrability and periodic orbits of a 3D jerk system with two quadratic nonlinearities.
Nonlinear Anal. Real World Appl., 88, 104491 (6 pages). 2026. [DOI] (Preprint)
PreprintAbstractPreprint at DDDUAB

M. T. Anacona, G. Anacona Erazo, J. Llibre.
Limit cycles of a class of hybrid piecewise differential systems with a discontinuity line of L shape.
Nonlinear Anal. Real World Appl., 88(104492), 6 pages. 2026. [DOI]
PreprintAbstractPreprint at DDDUAB

J. C. Artés, J. Llibre, D. Schlomiuk, N. Vulpe.   NEW 2026-04-07
Codimension in planar polynomial differential systems.
Electron. J. Differential Equations, 2026(28), 47 pp.. 2026. [DOI]
PreprintAbstract

J. C. Artés, C. Trullàs.
Quadratic differential systems with a weak focus of first order and a finite saddle-node.
Internat. J. Bifur. Chaos Appl. Sci. Engrg., 36(6), 2630013. 2026. [DOI]
PreprintAbstract

A. Bakhshalizadeh, J. Llibre.   NEW 2026-06-04
Continuous linear and quadratic differential systems on the 2-dimensional torus.
Bol. Soc. Mat. Mexicana, 32(Article number 75), 13 pp.. 2026. [DOI]
PreprintAbstract

A. Bakhshalizadeh, J. Llibre.
Limit cycles in planar discontinuous piecewise linear Hamiltonian systems with three equal sectors.
Chaos, 36(Article no 043109), 6 pp.. 2026. [DOI]
PreprintAbstract

W. M. Batista, J. Llibre, D. J. Tonon.
Sewing limit cycles for piecewise smooth systems with two linear centers and a coupled rigid center.
Math. Comput. Simulation, 248, 17-25. 2026. [DOI]
PreprintAbstract

C. A. Buzzi, J. Llibre, P. Santana.
Phase portraits of (2;1) reversible vector fields of low codimension.
Differ. Equ. Dyn. Syst., 49 pages. 2026. [DOI]
PreprintAbstract

C. A. Buzzi, D. J. Tonon, J. Torregrosa.
Limit cycles for a piecewise polynomial potential perturbation of a symmetric 8-loop Hamiltonian.
NoDEA Nonlinear Differential Equations Appl., 33(Article 7), 29 pages. 2026. [DOI]
PreprintAbstractPreprint at DDDUAB

C. Cao, J. Llibre.   NEW 2026-04-07
On the dynamics of the Moon-Rand systems.
Commun. Nonlinear Sci. Numer. Simul., 161, 110232. 2026. [DOI]
PreprintAbstract

N. Chachapoyas, J. Llibre, I. S. Meza Sarmiento, J. Vidarte.
Limit cycles of continuous-discontinuous piecewise linear Hamiltonian systems in $R^2$ separated by the curve $y=\sin(x)$.
49, 2093-2097. 2026. [DOI]
PreprintAbstractPreprint at DDDUAB

T. Chen, J. Llibre, H. Zhang.
Dynamics for a Rayleigh-Liénard-Duffing oscillator in wing rock.
J. Math. Phys., 67(032703), . 2026. [DOI]
PreprintAbstract

A. Cima, A. Gasull, F. Mañosas.
On the critical points of planar polynomial Hamiltonian systems.
Nonlinear Anal. Real World Appl., 88(104503), 7 pages. 2026. [DOI]
PreprintAbstractPreprint at DDDUAB

L. P. C. Cruz, J. Llibre.
Global centers in a class of quintic polynomial differential system.
Proc. Roy. Soc. Edinburgh Sect. A, 156(1), 39-54. 2026. [DOI]
PreprintAbstractPreprint at DDDUAB

L. P. C. Cruz, R. D. S. Oliveira, J. Torregrosa.
Limit cycles in piecewise quadratic Kolmogorov systems.
Commun. Nonlinear Sci. Numer. Simul., 152(109285), 16 pages. 2026. [DOI]
PreprintAbstractPreprint at DDDUAB

A. F. Fonseca, J. Llibre, L. F. Mello.
Periodic orbits of the planar continuous piecewise linear systems with three zones separated by two parallel straight lines.
Bol. Soc. Mat. Mexicana, 32(69), . 2026. [DOI]
PreprintAbstract

E. Diz Pita, J. Llibre, M. V. Otero Espinar.
On the dynamics of the autonomous Duffing-Holmes oscillator.
Nonlinear Anal. Model. Control, 31(3), 699-721. 2026. [DOI]
PreprintAbstract

M. Domingues, J. Llibre, L. F. Mello.
A new sufficient condition in order that the real Jacobian conjecture in $R^2$ holds.
J. Differential Equations, 457(114068), 8 pages. 2026. [DOI]
PreprintAbstractPreprint at DDDUAB