Wigner measures and quantum Aubry-Mather theory. - Diogo A. Gomes 002; Cláudia Valls (Asymptot. Anal., 2007)

Formal and Analytic Integrability of the Rossler System. - Jaume Llibre; Cláudia Valls (Int. J. Bifurc. Chaos, 2007)

On the Anisotropic Potentials of Manev-Schwarzschild Type. - Cláudia Valls (Int. J. Bifurc. Chaos, 2010)

Darboux integrability of a nonlinear financial system. - Cláudia Valls (Appl. Math. Comput., 2011)

On the C1 non-integrability of the Belousov-Zhabotinskii system. - Jaume Llibre; Cláudia Valls (Comput. Math. Appl., 2011)

Polynomial First integrals for the Chen and Lü Systems. - Jaume Llibre; Cláudia Valls (Int. J. Bifurc. Chaos, 2012)

Hausdorff Dimension and Nonlinear Relations Between Frequencies of Digits. - Luís Barreira; Cláudia Valls (Open Syst. Inf. Dyn., 2012)

Generalized Weierstrass integrability for the complex differential equations dydx=a(x)y4+b(x)y3+c(x)y2+d(x)y+e(x). - Jaume Llibre; Cláudia Valls (Appl. Math. Lett., 2013)

On the Number of Limit cycles for a Generalization of LiéNard Polynomial differential Systems. - Jaume Llibre; Cláudia Valls (Int. J. Bifurc. Chaos, 2013)

Centers for a class of generalized quintic polynomial differential systems. - Jaume Giné; Jaume Llibre; Cláudia Valls (Appl. Math. Comput., 2014)

On the analytic integrability of the cored galactic Hamiltonian. - Jaume Llibre; Cláudia Valls (Appl. Math. Lett., 2014)

Exponential behavior in Banach spaces: robustness of trichotomies in discrete time. - Luís Barreira; Liviu Horia Popescu; Cláudia Valls (Period. Math. Hung., 2014)

Center problem in the center manifold for quadratic and cubic differential systems in R3. - Cláudia Valls (Appl. Math. Comput., 2015)

On the integrability of a three-dimensional cored galactic Hamiltonian. - Jaume Llibre; Cláudia Valls (Appl. Math. Lett., 2015)

Hopf bifurcation of a generalized Moon-Rand system. - Jaume Llibre; Cláudia Valls (Commun. Nonlinear Sci. Numer. Simul., 2015)

Centers and isochronous centers for generalized quintic systems. - Jaume Giné; Jaume Llibre; Cláudia Valls (J. Comput. Appl. Math., 2015)

Uniqueness and Non-uniqueness of Limit Cycles for Piecewise Linear Differential Systems with Three Zones and No Symmetry. - Jaume Llibre; Enrique Ponce; Cláudia Valls (J. Nonlinear Sci., 2015)

The Completely Integrable Differential Systems are Essentially Linear Differential Systems. - Jaume Llibre; Cláudia Valls; Xiang Zhang 009 (J. Nonlinear Sci., 2015)

Chaotic Behavior of a Generalized Sprott E Differential System. - Regilene D. S. Oliveira; Cláudia Valls (Int. J. Bifurc. Chaos, 2016)

Center problem in the center manifold for quadratic differential systems in R3. - Jaume Giné; Cláudia Valls (J. Symb. Comput., 2016)

Limit cycles for a variant of a generalized Riccati equation. - Jaume Llibre; Cláudia Valls (Appl. Math. Lett., 2017)

Nondegenerate centers for Abel polynomial differential equations of second kind. - Jaume Giné; Cláudia Valls (J. Comput. Appl. Math., 2017)

Robustness of exponential behavior in Banach spaces. - Luís Barreira; Liviu Horia Popescu; Cláudia Valls (Period. Math. Hung., 2017)

Conservation Laws in Biochemical Reaction Networks. - Adam Mahdi; Antoni Ferragut; Cláudia Valls; Carsten Wiuf (SIAM J. Appl. Dyn. Syst., 2017)

Invariant Algebraic Surfaces and Hopf Bifurcation of a Finance Model. - Murilo R. Cândido; Jaume Llibre; Cláudia Valls (Int. J. Bifurc. Chaos, 2018)

Polynomial Hamiltonian systems of degree 3 with symmetric nilpotent centers. - Fabio Scalco Dias; Jaume Llibre; Cláudia Valls (Math. Comput. Simul., 2018)

The Liouvillian Integrability of Several Oscillators. - Jaume Giné; Cláudia Valls (Int. J. Bifurc. Chaos, 2019)

Two Limit Cycles in Liénard Piecewise Linear Differential Systems. - Jaume Llibre; Enrique Ponce; Cláudia Valls (J. Nonlinear Sci., 2019)

Limit cycles bifurcating of Kolmogorov systems in R2 and in R3. - Jaume Llibre; Y. Paulina Martínez; Cláudia Valls (Commun. Nonlinear Sci. Numer. Simul., 2020)

Global Phase Portraits of ℤ2-Symmetric Planar Polynomial Hamiltonian Systems of Degree Three with a Nilpotent Saddle at the Origin. - Montserrat Corbera; Cláudia Valls (Int. J. Bifurc. Chaos, 2020)

Classification of Invariant Algebraic Curves and Nonexistence of Algebraic Limit Cycles in Quadratic Systems from Family (I) of the Chinese Classification. - Maria V. Demina; Cláudia Valls (Int. J. Bifurc. Chaos, 2020)

Global Phase Portraits for a Planar ℤ2-Equivariant Kukles Systems of Degree 3. - Fabio Scalco Dias; Ronisio Moises Ribeiro; Cláudia Valls (Int. J. Bifurc. Chaos, 2020)

Nilpotent Global Centers of Linear Systems with Cubic Homogeneous Nonlinearities. - Johanna Denise García-Saldaña; Jaume Llibre; Cláudia Valls (Int. J. Bifurc. Chaos, 2020)

Global qualitative dynamics of the Brusselator system. - Jaume Llibre; Cláudia Valls (Math. Comput. Simul., 2020)

The zero-Hopf bifurcations in the Kolmogorov systems of degree 3 in R3. - Érika Diz-Pita; Jaume Llibre; Victoria Otero-Espinar; Cláudia Valls (Commun. Nonlinear Sci. Numer. Simul., 2021)

Global Phase Portraits for the Kukles Systems of Degree 3 with ℤ2-Reversible Symmetries. - Fabio Scalco Dias; Ronisio Moises Ribeiro; Cláudia Valls (Int. J. Bifurc. Chaos, 2021)

The Extended 16th Hilbert Problem for Discontinuous Piecewise Linear Centers Separated by a Nonregular Line. - Marina Esteban; Jaume Llibre; Cláudia Valls (Int. J. Bifurc. Chaos, 2021)

On the Existence of Symmetric Bicircular Central Configurations of the 3n-Body Problem. - Montserrat Corbera; Cláudia Valls (J. Nonlinear Sci., 2021)

Limit Cycles of Planar Piecewise Differential Systems with Linear Hamiltonian Saddles. - Jaume Llibre; Cláudia Valls (Symmetry, 2021)

Limit Cycles of Planar Discontinuous Piecewise Linear Hamiltonian Systems Without Equilibria Separated by Nonregular Curves. - Johana Jimenez; Jaume Llibre; Cláudia Valls (Int. J. Bifurc. Chaos, 2022)

Center manifolds for delay-differential equations with variable argument. - Luís Barreira; Cláudia Valls (Period. Math. Hung., 2023)

The Extended 16th Hilbert Problem for Discontinuous Piecewise Systems Formed by Linear Centers and Linear Hamiltonian Saddles Separated by a Nonregular Line. - Jaume Llibre; Cláudia Valls (Int. J. Bifurc. Chaos, 2023)

Bounded Kukles Systems of Degree Three. - Fabio Scalco Dias; Luis Fernando Mello; Cláudia Valls (Int. J. Bifurc. Chaos, 2024)

Correction: On the Existence of Symmetric Bicircular Central Configurations of the 3n-Body Problem. - Montserrat Corbera; Cláudia Valls (J. Nonlinear Sci., 2025)