J. Llibre, W. F. Pereira, C. Pessoa.
Phase portraits of Bernoulli quadratic polynomial differential systems.
Electron. J. Differential Equations, 2020(48), 1-19. 2020.
PreprintAbstractPreprint at DDDUAB

J. Llibre, O. Ramírez.
Gradient systems of harmonic polynomials.
J. Differential Equations, 269, 10073-10084. 2020. [DOI]
PreprintAbstractPreprint at DDDUAB

J. Llibre, R. O. Ramírez.
Integrability by separation of variables.
Phys. D, 409, 132523:1-22. 2020. [DOI]
PreprintAbstractPreprint at DDDUAB

J. Llibre, R. O. Ramírez, V. Ramírez.
Integrability of a class of N-dimensional Lotka-Volterra and Kolmogorov systems.
J. Differential Equations, 269, 2503-2531. 2020. [DOI]
PreprintAbstractPreprint at DDDUAB

J. Llibre, R. O. Ramírez, N. Sadovskaia.
Differential equations with a given set of solutions.
Appl. Math. Comput., 365, 124659:1-20. 2020. [DOI]
PreprintAbstractPreprint at DDDUAB

J. Llibre, V. F. Sirvent.
Periods of holomorphic maps on compact Riemann surfaces and product of spheres.
J. Difference Equ. Appl., 26(8), 1059-1066. 2020. [DOI]
PreprintAbstractPreprint at DDDUAB

J. Llibre, V. F. Sirvent.
Periodic structure of transversal maps on sum-free products of spheres.
J. Difference Equ. Appl., 25(5), 619-629. 2020. [DOI]
PreprintAbstractPreprint at DDDUAB

J. Llibre, D. J. Tonon, M. Q. Velter.
Crossing periodic orbits via first integrals.
Internat. J. Bifur. Chaos Appl. Sci. Engrg., 30(11), 2050163 (9 pages). 2020. [DOI]
PreprintAbstractPreprint at DDDUAB

J. Llibre, C. Valls.
Global qualitative dynamics of the brusselator system.
Math. Comput. Simulation, 170, 107-114. 2020. [DOI]
PreprintAbstractPreprint at DDDUAB

J. Llibre, C. Valls.
Centers of planar generalized Abel equations.
J. Differential Equations, 268, 6481-6487. 2020. [DOI]
PreprintAbstractPreprint at DDDUAB

J. Llibre, C. Valls.
On the configurations of the singular points and their topological indices for the spatial quadratic polynomial differential systems.
J. Differential Equations, 269, 10571-10586. 2020. [DOI]
PreprintAbstractPreprint at DDDUAB

J. Llibre, C. Valls.
On the singularities of the planar cubic polynomial differential systems and the Euler Jacobi formula.
Qual. Theory Dyn. Syst., 19(96), 1-34. 2020. [DOI]
PreprintAbstractPreprint at DDDUAB

J. Llibre, D. Xiao.
On the configurations of centers of planar Hamiltonian Kolmogorov cubic polynomial differential systems.
Pacific J. Math., 306(2), 611-644. 2020. [DOI]
PreprintAbstractPreprint at DDDUAB

P. Mardesic, D. Marín, J. Villadelprat.
Bifurcations of zeros in translated families of functions and applications.
J. Dyn. Control Syst., . 2020. [DOI]
PreprintAbstractPreprint at DDDUAB

D. Marín, J. Villadelprat.
Asymptotic expansion of the Dulac map and time for unfoldings of hyperbolic saddles: local setting.
J. Differential Equations, 269(10), 8425-8467. 2020. [DOI]
PreprintAbstractPreprint at DDDUAB

A. Nurtay, M. G. Hennessy, Ll. Alsedà, S. F. Elena, J. Sardanyés.
Host-virus evolutionary dynamics with specialist and generalist infection strategies: bifurcations, bistability, and chaos.
Chaos, 30(5), 053128:1-17. 2020. [DOI]
AbstractFull PDF

M. Ollé, Ò. Rodríguez, J. Soler.
Analytical and numerical results on families of n-ejection-collision orbits in the RTBP.
Commun. Nonlinear Sci. Numer. Simul., 90, 105294, 27 pp.. 2020. [DOI]
PreprintAbstractPreprint at DDDUAB

D. Rojas.
Asymptotic development of an integral operator and boundedness of the criticality of potential centers.
J. Dyn. Diff. Equat., 32(2), 665-704. 2020. [DOI]
PreprintAbstractPreprint at DDDUAB

D. Rojas.
Resonance of bounded isochronous oscillators.
Nonlinear Anal., 192, 111680:1-10. 2020. [DOI]
PreprintAbstractPreprint at DDDUAB

D. Rojas, P. J. Torres.
Bifurcation of relative equilibria generated by a circular vortex path in a circular domain.
Discrete Contin. Dyn. Syst. Ser. B, 25(2), 749-760. 2020. [DOI]
PreprintAbstractPreprint at DDDUAB