X. Hu, B. Huang, J. Llibre, Y. Tang.   NEW 2025-09-17
Periodic orbits of hamiltonian systems in $R^{2n}$ via averaging theory.
Preprint. September, 2025.
Abstract

A. Gasull, D. D. Novaes, J. Torregrosa.   NEW 2025-09-04
Weak-Coppel problem for a class of Riccati differential equations.
Preprint. September, 2025.
PreprintAbstract

A. Murza, J. Llibre.   NEW 2025-08-20
Darboux theory of integrability for real polynomial vector fields on the n-dimensional hyperboloid.
Preprint. August, 2025.
Abstract

Y. Li, J. Llibre.   NEW 2025-08-20
Dynamics of a differential system in $R^3$ with a simple chaotic flow.
Preprint. August, 2025.
Abstract

J. Llibre, A. Murza.   NEW 2025-08-11
Invariant meridians and parallels on the hyperboloid of one sheet.
Preprint. August, 2025.
Abstract

A. Gasull.   NEW 2025-07-31
A primer on resultants and their applications.
Preprint. July, 2025.
PreprintAbstract

J. Llibre, H. Zeng.   NEW 2025-07-07
Global phase portraits of a SIS model with importation and removal.
Preprint. July, 2025.
Abstract

C. A. Buzzi, D. J. Tonon, J. Torregrosa.   NEW 2025-06-27
Limit cycles for a piecewise polynomial potential perturbation of a symmetric 8-loop Hamiltonian.
Preprint. June, 2025.
Abstract

Á. Fernández-Mora, À. Haro, J. M. Mondelo.   NEW 2025-06-23
On the convergence of flow map parametrization methods in Hamiltonian systems.
Preprint. June, 2025.
PreprintAbstract

L. Queiroz, J. Llibre.   NEW 2025-06-23
On a class of Hamiltonian Kolmogorov systems.
Preprint. June, 2025.
Abstract

R. F. Appis, J. Llibre.   NEW 2025-06-16
No global centers in a class of cubic systems.
Preprint. June, 2025.
Abstract

J. Llibre, A. C. Rezende, L. P. Serantola.   NEW 2025-06-09
The periodic orbits of some classes of $3$-dimensional relay hybrid systems.
Preprint. June, 2025.
Abstract

J. Llibre, A. C. T. Sánchez, D. J. Tonon.   NEW 2025-06-04
Limit cycles of discontinuous piecewise hybrid rigid systems separated by a straight line.
Preprint. June, 2025.
Abstract

A. Murza, J. Llibre.   NEW 2025-06-01
Polynomial vector fields on the whitney umbrella.
Preprint. June, 2025.
Abstract

J. Llibre, G. Rondon.
The dynamics of the Ehrhard-Müller system with invariant algebraic surfaces.
Preprint. May, 2025.
PreprintAbstract

R. D. S. Oliveira, A. L. Rodero, J. Torregrosa.
Mixed simultaneous cyclicity for piecewise smooth vector fields defined on an invariant sphere.
Preprint. May, 2025.
Abstract

D. Marín, J. Villadelprat.
Derivatives of the separation function of generalized saddle connections.
Preprint. May, 2025.
PreprintAbstract

A. C. Rezende, M. A. S. Santos, J. Torregrosa.
The period function of centers at infinity in planar piecewise linear systems.
Preprint. May, 2025.
Abstract

M. Domingues, J. Llibre, L. F. Mello.
A new sufficient condition in order that the real Jacobian conjecture in $R^2$ holds.
Preprint. April, 2025.
Abstract

B. R. de Freitas, D. Avila, F. Becatti, J. Llibre.
Limit cycles of continuous-discontinuous piecewise differential systems formed by two Hamiltonian systems and separated by a non-regular line.
Preprint. April, 2025.
Abstract