Cláudia Valls

44 papers Journal 44

Year	Rank	Type	Title / Venue / Authors
2025	J	`jnl`	Correction: On the Existence of Symmetric Bicircular Central Configurations of the 3n-Body Problem. J. Nonlinear Sci. Montserrat Corbera, Cláudia Valls
2024	J	`jnl`	Bounded Kukles Systems of Degree Three. Int. J. Bifurc. Chaos Fabio Scalco Dias, Luis Fernando Mello, Cláudia Valls
2023	J	`jnl`	Center manifolds for delay-differential equations with variable argument. Period. Math. Hung. Luís Barreira, Cláudia Valls
2023	J	`jnl`	The Extended 16th Hilbert Problem for Discontinuous Piecewise Systems Formed by Linear Centers and Linear Hamiltonian Saddles Separated by a Nonregular Line. Int. J. Bifurc. Chaos Jaume Llibre, Cláudia Valls
2022	J	`jnl`	Limit Cycles of Planar Discontinuous Piecewise Linear Hamiltonian Systems Without Equilibria Separated by Nonregular Curves. Int. J. Bifurc. Chaos Johana Jimenez, Jaume Llibre, Cláudia Valls
2021	J	`jnl`	Global Phase Portraits for the Kukles Systems of Degree 3 with ℤ2-Reversible Symmetries. Int. J. Bifurc. Chaos Fabio Scalco Dias, Ronisio Moises Ribeiro, Cláudia Valls
2021	J	`jnl`	Limit Cycles of Planar Piecewise Differential Systems with Linear Hamiltonian Saddles. Symmetry Jaume Llibre, Cláudia Valls
2021	J	`jnl`	On the Existence of Symmetric Bicircular Central Configurations of the 3n-Body Problem. J. Nonlinear Sci. Montserrat Corbera, Cláudia Valls
2021	J	`jnl`	The Extended 16th Hilbert Problem for Discontinuous Piecewise Linear Centers Separated by a Nonregular Line. Int. J. Bifurc. Chaos Marina Esteban, Jaume Llibre, Cláudia Valls
2021	J	`jnl`	The zero-Hopf bifurcations in the Kolmogorov systems of degree 3 in R3. Commun. Nonlinear Sci. Numer. Simul. Érika Diz-Pita, Jaume Llibre, Victoria Otero-Espinar, Cláudia Valls
2020	J	`jnl`	Classification of Invariant Algebraic Curves and Nonexistence of Algebraic Limit Cycles in Quadratic Systems from Family (I) of the Chinese Classification. Int. J. Bifurc. Chaos Maria V. Demina, Cláudia Valls
2020	J	`jnl`	Global Phase Portraits for a Planar ℤ2-Equivariant Kukles Systems of Degree 3. Int. J. Bifurc. Chaos Fabio Scalco Dias, Ronisio Moises Ribeiro, Cláudia Valls
2020	J	`jnl`	Global Phase Portraits of ℤ2-Symmetric Planar Polynomial Hamiltonian Systems of Degree Three with a Nilpotent Saddle at the Origin. Int. J. Bifurc. Chaos Montserrat Corbera, Cláudia Valls
2020	J	`jnl`	Global qualitative dynamics of the Brusselator system. Math. Comput. Simul. Jaume Llibre, Cláudia Valls
2020	J	`jnl`	Limit cycles bifurcating of Kolmogorov systems in R2 and in R3. Commun. Nonlinear Sci. Numer. Simul. Jaume Llibre, Y. Paulina Martínez, Cláudia Valls
2020	J	`jnl`	Nilpotent Global Centers of Linear Systems with Cubic Homogeneous Nonlinearities. Int. J. Bifurc. Chaos Johanna Denise García-Saldaña, Jaume Llibre, Cláudia Valls
2019	J	`jnl`	The Liouvillian Integrability of Several Oscillators. Int. J. Bifurc. Chaos Jaume Giné, Cláudia Valls
2019	J	`jnl`	Two Limit Cycles in Liénard Piecewise Linear Differential Systems. J. Nonlinear Sci. Jaume Llibre, Enrique Ponce, Cláudia Valls
2018	J	`jnl`	Invariant Algebraic Surfaces and Hopf Bifurcation of a Finance Model. Int. J. Bifurc. Chaos Murilo R. Cândido, Jaume Llibre, Cláudia Valls
2018	J	`jnl`	Polynomial Hamiltonian systems of degree 3 with symmetric nilpotent centers. Math. Comput. Simul. Fabio Scalco Dias, Jaume Llibre, Cláudia Valls
2017	J	`jnl`	Conservation Laws in Biochemical Reaction Networks. SIAM J. Appl. Dyn. Syst. Adam Mahdi, Antoni Ferragut, Cláudia Valls, Carsten Wiuf
2017	J	`jnl`	Limit cycles for a variant of a generalized Riccati equation. Appl. Math. Lett. Jaume Llibre, Cláudia Valls
2017	J	`jnl`	Nondegenerate centers for Abel polynomial differential equations of second kind. J. Comput. Appl. Math. Jaume Giné, Cláudia Valls
2017	J	`jnl`	Robustness of exponential behavior in Banach spaces. Period. Math. Hung. Luís Barreira, Liviu Horia Popescu, Cláudia Valls
2016	J	`jnl`	Center problem in the center manifold for quadratic differential systems in R J. Symb. Comput. Jaume Giné, Cláudia Valls
2016	J	`jnl`	Chaotic Behavior of a Generalized Sprott E Differential System. Int. J. Bifurc. Chaos Regilene D. S. Oliveira, Cláudia Valls
2015	J	`jnl`	Center problem in the center manifold for quadratic and cubic differential systems in R Appl. Math. Comput. Cláudia Valls
2015	J	`jnl`	Centers and isochronous centers for generalized quintic systems. J. Comput. Appl. Math. Jaume Giné, Jaume Llibre, Cláudia Valls
2015	J	`jnl`	Hopf bifurcation of a generalized Moon-Rand system. Commun. Nonlinear Sci. Numer. Simul. Jaume Llibre, Cláudia Valls
2015	J	`jnl`	On the integrability of a three-dimensional cored galactic Hamiltonian. Appl. Math. Lett. Jaume Llibre, Cláudia Valls
2015	J	`jnl`	The Completely Integrable Differential Systems are Essentially Linear Differential Systems. J. Nonlinear Sci. Jaume Llibre, Cláudia Valls, Xiang Zhang
2015	J	`jnl`	Uniqueness and Non-uniqueness of Limit Cycles for Piecewise Linear Differential Systems with Three Zones and No Symmetry. J. Nonlinear Sci. Jaume Llibre, Enrique Ponce, Cláudia Valls
2014	J	`jnl`	Centers for a class of generalized quintic polynomial differential systems. Appl. Math. Comput. Jaume Giné, Jaume Llibre, Cláudia Valls
2014	J	`jnl`	Exponential behavior in Banach spaces: robustness of trichotomies in discrete time. Period. Math. Hung. Luís Barreira, Liviu Horia Popescu, Cláudia Valls
2014	J	`jnl`	On the analytic integrability of the cored galactic Hamiltonian. Appl. Math. Lett. Jaume Llibre, Cláudia Valls
2013	J	`jnl`	Generalized Weierstrass integrability for the complex differential equations dydx=a(x)y4+b(x)y3+c(x)y2+d(x)y+e(x). Appl. Math. Lett. Jaume Llibre, Cláudia Valls
2013	J	`jnl`	On the Number of Limit cycles for a Generalization of LiéNard Polynomial differential Systems. Int. J. Bifurc. Chaos Jaume Llibre, Cláudia Valls
2012	J	`jnl`	Hausdorff Dimension and Nonlinear Relations Between Frequencies of Digits. Open Syst. Inf. Dyn. Luís Barreira, Cláudia Valls
2012	J	`jnl`	Polynomial First integrals for the Chen and Lü Systems. Int. J. Bifurc. Chaos Jaume Llibre, Cláudia Valls
2011	J	`jnl`	Darboux integrability of a nonlinear financial system. Appl. Math. Comput. Cláudia Valls
2011	J	`jnl`	On the C Comput. Math. Appl. Jaume Llibre, Cláudia Valls
2010	J	`jnl`	On the Anisotropic Potentials of Manev-Schwarzschild Type. Int. J. Bifurc. Chaos Cláudia Valls
2007	J	`jnl`	Formal and Analytic Integrability of the Rossler System. Int. J. Bifurc. Chaos Jaume Llibre, Cláudia Valls
2007	J	`jnl`	Wigner measures and quantum Aubry-Mather theory. Asymptot. Anal. Diogo A. Gomes, Cláudia Valls