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

C. A. Buzzi, J. Llibre, P. Santana.
Phase portraits of (2;1) reversible vector fields of low codimension.
Differ. Equ. Dyn. Syst., . 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

N. Chachapoyas, J. Llibre, I. S. Meza Sarmiento, J. Vidarte.   NEW 2026-01-19
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

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

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

Á. Fernández-Mora, À. Haro, J. M. Mondelo.   NEW 2026-01-25
On the convergence of flow map parameterization methods for whiskered tori in quasi-periodic Hamiltonian systems.
Commun. Nonlinear Sci. Numer. Simul., 152, 109214. 2026. [DOI]
PreprintAbstractPreprint at DDDUAB

R. A. Garcia, A. Gasull.
Plane curves with proportional affine and Euclidean curvatures.
Qual. Theory Dyn. Syst., 25(59), . 2026. [DOI]
Preprint

A. Gasull, D. D. Novaes, J. Torregrosa.
Weak-Coppel problem for a class of Riccati differential equations.
J. Differential Equations, 471(114392), 26 pages.. 2026. [DOI]
PreprintAbstract

A. Gasull, P. Santana.
Limit cycles and invariant algebraic curves.
Commun. Pure Appl. Anal., 28, 214-220. 2026. [DOI]
PreprintAbstract

A. Gasull, J. L. Varona.   NEW 2026-03-30
101 microdemostraciones.
Mat. Mat., 2026(1), 71. 2026.
PreprintAbstractFull PDF

J. Llibre, A. Murza.   NEW 2026-02-15
Invariant meridians and parallels on the hyperboloid of one sheet.
DIFFER GEOM, 102, 102326. 2026. [DOI]
Abstract

J. Llibre, R. D. S. Oliveira.   NEW 2026-01-30
Limit cycles of planar discontinuous piecewise linear Hamiltonian systems in three regions of Y-type.
Chaos Solitons Fractals, 207, 117997. 2026. [DOI]
AbstractPreprint at DDDUAB

J. Llibre, A. C. T. Sánchez, D. J. Tonon.   NEW 2026-01-15
Limit cycles of discontinuous piecewise hybrid rigid systems separated by a straight line.
Nonlinear Anal. Real World Appl., 91, 104607. 2026. [DOI]
PreprintAbstractPreprint at DDDUAB

A. Murza, J. Llibre.
Polynomial vector fields on the whitney umbrella.
Differ. Equ. Dyn. Syst., . 2026. [DOI]
Preprint