S. Jana, J. Llibre.
$n$-dimensional Lotka-Volterra systems with a Darboux invariant.
Nonlinear Anal. Real World Appl., 94(104699), 7 pages. 2027.  [DOI]
PreprintAbstract

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]
PreprintAbstractPreprint at DDDUAB

G. Anacona Erazo, J. Llibre.
Global dynamics of the Sprott dynamical system Case A with linear antidamping.
Discrete Contin. Dyn. Syst. Ser. B, 39, 371-380. 2026.  [DOI]
PreprintAbstract

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, L. Cairó, J. Llibre.
Phase portraits of the families V to X for the quadratic polynomial differential systems.
Qual. Theory Dyn. Syst., 25(145), 28 pages. 2026.  [DOI]
PreprintAbstract

J. C. Artés, J. Llibre, D. Schlomiuk, N. Vulpe.
Codimension in planar polynomial differential systems.
Electron. J. Differential Equations, 2026(28), 47 pages. 2026.  [DOI] [MR]
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] [MR]
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 pages. 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 pages. 2026.  [DOI] [MR]
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] [MR]
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]
PreprintAbstractPreprint at DDDUAB

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] [MR]
PreprintAbstractPreprint at DDDUAB

C. Cao, J. Llibre.
On the dynamics of the Moon-Rand systems.
Commun. Nonlinear Sci. Numer. Simul., 161, 110232. 2026.  [DOI]
PreprintAbstractPreprint at DDDUAB

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 $y=\sin(x)$.
Math. Methods Appl. Sci., 49, 2093-2097. 2026.  [DOI] [MR]
PreprintAbstractPreprint at DDDUAB

N. Chachapoyas, J. Llibre, I. S. Meza Sarmiento, J. Vidarte.   NEW 2026-04-29
Limit cycles of continuous-discontinuous piecewise linear Hamiltonian systems in $R^2$ separated by the curve $y=e^x$.
Int. J. Appl. Comput. Math, 12(62), 8 pages. 2026.  [DOI]
PreprintAbstract

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

C. J. Christopher, M. Grau, J. Villadelprat.   NEW 2026-07-31
Characterization of isochronous centers of polynomial quadratic-like Hamiltonian systems.
J. Differential Equations, 480, 114670. 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] [MR]
PreprintAbstractPreprint at DDDUAB