J. Li, J. Llibre.
Limit cycles of the piecewise differential systems.
Preprint. March, 2022.
Abstract

J. Llibre, Y. P. Martinez Mancilla.
Limit cycles bifurcating from Kolmogorov systems of degree 4 in $R^2$ and $R^3$.
Preprint. March, 2022.
Abstract

J. Llibre, J. R. Moraes.
Limit cycles of discontinuous piecewise differential systems in $R^2$ separated by one or two parallel straight lines and formed by arbitrary linear Hamiltonian systems.
Preprint. March, 2022.
Abstract

M. E. Anacleto, J. Llibre, C. Valls, C. Vidal.
On the crossing limit cycles created by discontinuous piecewise differential system formed by three linear Hamiltonian saddles.
Preprint. February, 2022.
Abstract

M. F. S. Lima, J. Llibre.
Double zero-Hopf bifurcation in a four-dimensional hyperchaotic system.
Preprint. February, 2022.
Abstract

C. A. Buzzi, A. L. Rodero, M. A. Teixeira.
Stability conditions for piecewise refractive vector fields partially integrable.
Preprint. February, 2022.
Abstract

J. Giné, J. Llibre.
The solution of the Poincaré problem on the rational first integral for the Liénard polynomial differential equations.
February, 2022.
Abstract

J. Llibre, C. Valls.
The extended 16-th Hilbert problem for piecewise linear systems separated by a non-regular line.
Preprint. January, 2022.
Abstract

J. C. Artés, J. Llibre, N. Vulpe.
Dynamics of the static star differential system from the mathematical and physical point of views.
Preprint. November, 2021.
Abstract

J. Llibre, C. Valls.
Phase portraits of the equation $\ddot x + a x \dot x + b x^3=0$.
Preprint. November, 2021.
Abstract

J. Llibre, R. O. Ramírez, V. Ramírez.
On the integrability of the geodesic flow on homogeneous surfaces.
Preprint. November, 2021.
Abstract

C. Bouaziz, J. Llibre, D. Djedid, A. Makhlouf.
Zero-Hopf bifurcations for a class of 3-dimensional Lotka-Volterra systems.
Preprint. October, 2021.
Abstract

J. Llibre, C. Valls.
The 16th Hilbert problem for discontinuous piecewise linear Hamiltonian saddles and isochronous centers of degree two separated by a straight line.
Preprint. June, 2021.
Abstract

J. Llibre.
On the Abel differential equations and the polynomial differential systems.
Preprint. March, 2021.
Abstract

J. Llibre, C. Valls.
On the distribution of the zeros of some polynomial maps $( P, Q): R^2 \to R^2$.
Preprint. January, 2021.
Abstract

D. Marín, J. Villadelprat.
Asymptotic expansion of the Dulac map and time for unfoldings of hyperbolic saddles: coefficient properties.
Preprint. December, 2020.
PreprintAbstract

C. A. Buzzi, J. Llibre, P. Santana.
Phase portraits of (2;1) reversible vector fields of low codimension.
Preprint. December, 2020.
Abstract

C. Liu, J. Llibre, R. O. Ramírez, V. Ramírez.
Solution of the center problem for a class polynomial differential systems.
Preprint. October, 2020.
Abstract

O. A. R. Cespedes, J. Llibre.
Zero-Hopf bifurcation in a modified Van der Pol-Duffing oscillator.
Preprint. October, 2020.
Abstract

M. R. A. Gouveia, J. Llibre, L. A. Roberto.
Phase portraits of a family of Hamiltonian cubic systems.
Preprint. September, 2020.
Abstract