L. P. C. Cruz, R. D. S. Oliveira, A. L. Rodero.   NEW 2026-05-18
Center and cyclicity problems in a class of planar piecewise smooth vector fields with four zones.
Preprint. May, 2026.
PreprintAbstract

J. Llibre.   NEW 2026-05-15
Global asymptotic stability for the rigid polynomial differential systems of degree three.
To appear in Commun. Nonlinear Sci. Numer. Simul.
PreprintAbstract

J. Itikawa, J. Llibre.   NEW 2026-05-15
New families of planar Hamiltonian systems having global centers.
Preprint. May, 2026.
Abstract

L. L. Silva, J. Llibre.   NEW 2026-05-15
The dynamics of a polynomial differential system in $R^3$.
Preprint. May, 2026.
Abstract

J. Li, J. Llibre.   NEW 2026-05-13
Averaging approach to the limit cycles of a class of discontinuous piecewise differential systems.
Acta Math. Sinica (N.S.), 42(4), 940-960. 2026. [DOI]
PreprintAbstractPreprint at DDDUAB

Y. R. Carvalho, L. P. C. Cruz, L. F. d. S. Gouveia.   NEW 2026-05-08
New lower bound for the Hilbert number in low degree Kolmogorov systems.
Chaos Solitons Fractals, 175, 113937. 2023. [DOI]
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

J. Llibre, B. R. Freitas.   NEW 2026-04-29
Global attractors in a class of cubic polynomial differential systems.
Preprint. April, 2026.
Abstract

G. Rondon, P. R. Silva, J. Llibre.   NEW 2026-04-29
Limit cycles in piecewise smooth systems with circular switching manifold.
Preprint. April, 2026.
Abstract

J. Llibre, C. Valls.   NEW 2026-04-29
Three-dimensional Hopf bifurcation via averaging theory. Application to a virus vital model.
Preprint. April, 2026.
Abstract