A. Gasull.
Linealización en sistemas dinámicos holomorfos.
Gac. R. Soc. Mat. Esp., 26(3), 518. 2023. (In Spanish)
PreprintPreprint at DDDUAB

A. Gasull.
Proof without words: tangent of $\pi/8$.
Coll. Math. J., 54(4), 385. 2023. [DOI]
PreprintPreprint at DDDUAB

A. Gasull.
Mètodes de demostració.
Mat. Mat., 3, 85. 2023.
PreprintAbstractPreprint at DDDUAB

A. Gasull, H. Giacomini.
Number of limit cycles for planar systems with invariant algebraic curves.
Qual. Theory Dyn. Syst., 22(2), 44:1-28. 2023. [DOI]
PreprintAbstractPreprint at DDDUAB

A. Gasull, A. Guillamon, V. Mañosa.
Counting configurations of limit cycles and centers.
Bul. Acad. Ştiinţe Repub. Mold. Mat., 101, 78-96. 2023. [DOI]
PreprintAbstractPreprint at DDDUAB

A. Gasull, F. Luca, J. L. Varona.
Three essays on Machin’s type formulas.
Indag. Math. (N.S.), 34, 1373–1396. 2023. [DOI]
PreprintAbstractPreprint at DDDUAB

A. Gasull, Y. Zhao.
Existence of at most two limit cycles for some non-autonomous differential equations.
Commun. Pure Appl. Anal., 22(3), 970-982. 2023. [DOI]
PreprintAbstractPreprint at DDDUAB

J. Giné, J. Llibre.
The solution of the Poincaré problem on the rational first integral for the Liénard polynomial differential equations.
Chaos, 167, 113013. 2023. [DOI]
PreprintAbstractPreprint at DDDUAB

J. Giné, J. Llibre.
Criteria for the nonexistence of periodic orbits in planar differential systems.
Bul. Acad. Ştiinţe Repub. Mold. Mat., 2023(1), 3-7. 2023. [DOI]
PreprintAbstractPreprint at DDDUAB

J. Ginoux, J. Llibre.
A family of periodic orbits for the extended Hamiltonian system of the Van der Pol oscillator.
J. Geom. Phys., 183, 104705. 2023. [DOI]
PreprintAbstractPreprint at DDDUAB

J. Ginoux, J. Llibre.
Zero-Hopf bifurcation in the Chua's circuit.
J. Math. Phys., 64(7), . 2023. [DOI]
PreprintAbstractPreprint at DDDUAB

L. F. d. S. Gouveia, P. R. Silva, G. Rondon.
Global phase portrait and local integrability of holomorphic systems.
Qual. Theory Dyn. Syst., 22(35), . 2023. [DOI]
PreprintAbstract

J. J. Jimenez Ruiz, J. Llibre.
Limit cycles of polynomial differential systems of degree 1 and 2 on the cylinder.
Sao Paulo J. Math. Sci., 17(2), 679–-691. 2023. [DOI]
PreprintAbstractPreprint at DDDUAB

D. Juher, D. Rojas, J. Saldaña.
Saddle-node bifurcation of limit cycles in an epidemic model with two levels of awareness.
Phys. D, 448, 133714. 2023. [DOI]
PreprintAbstractPreprint at DDDUAB

N. Kruff, J. Llibre, C. Pantazi, S. Walcher.
Invariant algebraic surfaces of polynomial vector fields in dimension three.
J. Dyn. Diff. Equat., 35, 3241-3268. 2023. [DOI]
PreprintAbstractPreprint at DDDUAB

J. Li, J. Llibre.
Phase portraits of two classes of Liénard equations.
Bol. Soc. Mat. Mexicana, 29(9), 18 pages. 2023. [DOI]
PreprintAbstractPreprint at DDDUAB

S. Li, C. Liu, J. Llibre.
On the Poincaré-Bendixson index formula for planar piecewise smooth vector fields.
J. Nonlinear Sci., 33(118), 29 pp.. 2023. [DOI]
PreprintAbstractPreprint at DDDUAB

S. Li, J. Llibre, X. Sun.
On the indices of singular points for planar bounded piecewise smooth polynomial vector fields.
Nonlinear Anal. Hybrid Syst., 49, 101350. 2023. [DOI]
PreprintAbstractPreprint at DDDUAB

T. Li, J. Llibre.
On the 16-th Hilbert problem for discontinuous piecewise polynomial Hamiltonian systems.
J. Dyn. Diff. Equat., 35, 87–102. 2023. [DOI]
PreprintAbstractPreprint at DDDUAB

T. Li, J. Llibre.
Limit cycles in piecewise polynomial Hamiltonian systems allowing nonlinear switching boundaries.
J. Differential Equations, 344, 405-438. 2023. [DOI]
PreprintAbstractPreprint at DDDUAB