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ORCIDCláudia Valls
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2020 – today
- 2025
[j43]Montserrat Corbera
, Cláudia Valls:
Correction: On the Existence of Symmetric Bicircular Central Configurations of the 3n-Body Problem. J. Nonlinear Sci. 35(1): 17 (2025)- 2023
- [j42]Jaume Llibre, Cláudia Valls:
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 33(16): 2350196:1-2350196:10 (2023) - [j41]Luís Barreira, Cláudia Valls:
Center manifolds for delay-differential equations with variable argument. Period. Math. Hung. 86(1): 172-190 (2023) - 2022
- [j40]Johana Jimenez, Jaume Llibre, Cláudia Valls:
Limit Cycles of Planar Discontinuous Piecewise Linear Hamiltonian Systems Without Equilibria Separated by Nonregular Curves. Int. J. Bifurc. Chaos 32(12): 2250184:1-2250184:23 (2022) - 2021
- [j39]Érika Diz-Pita, Jaume Llibre, Victoria Otero-Espinar, Cláudia Valls:
The zero-Hopf bifurcations in the Kolmogorov systems of degree 3 in R3. Commun. Nonlinear Sci. Numer. Simul. 95: 105621 (2021) - [j38]Fabio Scalco Dias, Ronisio Moises Ribeiro, Cláudia Valls:
Global Phase Portraits for the Kukles Systems of Degree 3 with ℤ2-Reversible Symmetries. Int. J. Bifurc. Chaos 31(6): 2150083:1-2150083:17 (2021) - [j37]Marina Esteban, Jaume Llibre, Cláudia Valls:
The Extended 16th Hilbert Problem for Discontinuous Piecewise Linear Centers Separated by a Nonregular Line. Int. J. Bifurc. Chaos 31(15): 2150225:1-2150225:10 (2021) - [j36]Montserrat Corbera, Cláudia Valls:
On the Existence of Symmetric Bicircular Central Configurations of the 3n-Body Problem. J. Nonlinear Sci. 31(5): 88 (2021) - [j35]Jaume Llibre, Cláudia Valls:
Limit Cycles of Planar Piecewise Differential Systems with Linear Hamiltonian Saddles. Symmetry 13(7): 1128 (2021) - 2020
- [j34]Jaume Llibre, Y. Paulina Martínez, Cláudia Valls:
Limit cycles bifurcating of Kolmogorov systems in R2 and in R3. Commun. Nonlinear Sci. Numer. Simul. 91: 105401 (2020) - [j33]Montserrat Corbera, Cláudia Valls:
Global Phase Portraits of ℤ2-Symmetric Planar Polynomial Hamiltonian Systems of Degree Three with a Nilpotent Saddle at the Origin. Int. J. Bifurc. Chaos 30(1): 2050006:1-2050006:33 (2020) - [j32]Johanna Denise García-Saldaña, Jaume Llibre, Cláudia Valls:
Nilpotent Global Centers of Linear Systems with Cubic Homogeneous Nonlinearities. Int. J. Bifurc. Chaos 30(1): 2050010:1-2050010:12 (2020) - [j31]Maria V. Demina, Cláudia Valls:
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 30(4): 2050056:1-2050056:9 (2020) - [j30]Fabio Scalco Dias, Ronisio Moises Ribeiro, Cláudia Valls:
Global Phase Portraits for a Planar ℤ2-Equivariant Kukles Systems of Degree 3. Int. J. Bifurc. Chaos 30(12): 2050164:1-2050164:22 (2020) - [j29]Jaume Llibre, Cláudia Valls:
Global qualitative dynamics of the Brusselator system. Math. Comput. Simul. 170: 107-114 (2020)
2010 – 2019
- 2019
- [j28]Jaume Giné, Cláudia Valls:
The Liouvillian Integrability of Several Oscillators. Int. J. Bifurc. Chaos 29(5): 1950069:1-1950069:11 (2019) - [j27]Jaume Llibre, Enrique Ponce, Cláudia Valls:
Two Limit Cycles in Liénard Piecewise Linear Differential Systems. J. Nonlinear Sci. 29(4): 1499-1522 (2019) - 2018
- [j26]Murilo R. Cândido, Jaume Llibre, Cláudia Valls:
Invariant Algebraic Surfaces and Hopf Bifurcation of a Finance Model. Int. J. Bifurc. Chaos 28(12): 1850150:1-1850150:10 (2018) - [j25]Fabio Scalco Dias, Jaume Llibre, Cláudia Valls:
Polynomial Hamiltonian systems of degree 3 with symmetric nilpotent centers. Math. Comput. Simul. 144: 60-77 (2018) - 2017
- [j24]Jaume Llibre, Cláudia Valls:
Limit cycles for a variant of a generalized Riccati equation. Appl. Math. Lett. 68: 76-79 (2017) - [j23]Jaume Giné, Cláudia Valls:
Nondegenerate centers for Abel polynomial differential equations of second kind. J. Comput. Appl. Math. 321: 469-477 (2017) - [j22]Luís Barreira, Liviu Horia Popescu, Cláudia Valls:
Robustness of exponential behavior in Banach spaces. Period. Math. Hung. 75(1): 80-95 (2017) - [j21]Adam Mahdi, Antoni Ferragut, Cláudia Valls, Carsten Wiuf:
Conservation Laws in Biochemical Reaction Networks. SIAM J. Appl. Dyn. Syst. 16(4): 2213-2232 (2017) - 2016
- [j20]Regilene D. S. Oliveira, Cláudia Valls:
Chaotic Behavior of a Generalized Sprott E Differential System. Int. J. Bifurc. Chaos 26(5): 1650083:1-1650083:16 (2016) - [j19]Jaume Giné, Cláudia Valls:
Center problem in the center manifold for quadratic differential systems in R3. J. Symb. Comput. 73: 250-267 (2016) - 2015
- [j18]Cláudia Valls:
Center problem in the center manifold for quadratic and cubic differential systems in R3. Appl. Math. Comput. 251: 180-191 (2015) - [j17]Jaume Llibre, Cláudia Valls:
On the integrability of a three-dimensional cored galactic Hamiltonian. Appl. Math. Lett. 41: 23-27 (2015) - [j16]Jaume Llibre, Cláudia Valls:
Hopf bifurcation of a generalized Moon-Rand system. Commun. Nonlinear Sci. Numer. Simul. 20(3): 1070-1077 (2015) - [j15]Jaume Giné, Jaume Llibre, Cláudia Valls:
Centers and isochronous centers for generalized quintic systems. J. Comput. Appl. Math. 279: 173-186 (2015) - [j14]Jaume Llibre, Cláudia Valls, Xiang Zhang:
The Completely Integrable Differential Systems are Essentially Linear Differential Systems. J. Nonlinear Sci. 25(4): 815-826 (2015) - [j13]Jaume Llibre, Enrique Ponce, Cláudia Valls:
Uniqueness and Non-uniqueness of Limit Cycles for Piecewise Linear Differential Systems with Three Zones and No Symmetry. J. Nonlinear Sci. 25(4): 861-887 (2015) - 2014
- [j12]Jaume Giné, Jaume Llibre, Cláudia Valls:
Centers for a class of generalized quintic polynomial differential systems. Appl. Math. Comput. 242: 187-195 (2014) - [j11]Jaume Llibre, Cláudia Valls:
On the analytic integrability of the cored galactic Hamiltonian. Appl. Math. Lett. 33: 35-39 (2014) - [j10]Luís Barreira, Liviu Horia Popescu, Cláudia Valls:
Exponential behavior in Banach spaces: robustness of trichotomies in discrete time. Period. Math. Hung. 68(2): 207-221 (2014) - 2013
- [j9]Jaume Llibre, Cláudia Valls:
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. 26(8): 836-841 (2013) - [j8]Jaume Llibre, Cláudia Valls:
On the Number of Limit cycles for a Generalization of LiéNard Polynomial differential Systems. Int. J. Bifurc. Chaos 23(3) (2013) - 2012
- [j7]Jaume Llibre, Cláudia Valls:
Polynomial First integrals for the Chen and Lü Systems. Int. J. Bifurc. Chaos 22(11) (2012) - [j6]Luís Barreira, Cláudia Valls:
Hausdorff Dimension and Nonlinear Relations Between Frequencies of Digits. Open Syst. Inf. Dyn. 19(3) (2012) - 2011
- [j5]Cláudia Valls:
Darboux integrability of a nonlinear financial system. Appl. Math. Comput. 218(7): 3297-3302 (2011) - [j4]Jaume Llibre, Cláudia Valls:
On the C1 non-integrability of the Belousov-Zhabotinskii system. Comput. Math. Appl. 62(5): 2342-2348 (2011) - 2010
- [j3]Cláudia Valls:
On the Anisotropic Potentials of Manev-Schwarzschild Type. Int. J. Bifurc. Chaos 20(4): 1233-1243 (2010)
2000 – 2009
- 2007
- [j2]Diogo A. Gomes, Cláudia Valls:
Wigner measures and quantum Aubry-Mather theory. Asymptot. Anal. 51(1): 47-61 (2007) - [j1]Jaume Llibre, Cláudia Valls:
Formal and Analytic Integrability of the Rossler System. Int. J. Bifurc. Chaos 17(9): 3289-3293 (2007)
Coauthor Index
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