Piecewise linear perturbations of a linear center C Buzzi, C Pessoa, J Torregrosa Discrete Contin. Dyn. Syst 33 (9), 3915-3936, 2013 | 56 | 2013 |

On the centers of the weight-homogeneous polynomial vector fields on the plane J Llibre, C Pessoa arXiv preprint arXiv:0901.4971, 2009 | 24 | 2009 |

Homogeneous polynomial vector fields of degree 2 on the 2--dimensional sphere J Llibre, C Pessoa extracta mathematicae 21 (2), 167-190, 2006 | 19 | 2006 |

Invariant circles for homogeneous polynomial vector fields on the 2-dimensional sphere J Llibre, C Pessoa Rendiconti del Circolo Matematico di Palermo 55 (1), 63, 2006 | 18 | 2006 |

Centers on center manifolds in the Lü system A Mahdi, C Pessoa, DS Shafer Physics Letters A 375 (40), 3509-3511, 2011 | 16 | 2011 |

The Hopf bifurcation in the Shimizu–Morioka system J Llibre, C Pessoa Nonlinear Dynamics 79 (3), 2197-2205, 2015 | 14 | 2015 |

Phase portraits for quadratic homogeneous polynomial vector fields on J Llibre, C Pessoa Rendiconti del Circolo Matematico di Palermo 58 (3), 361-406, 2009 | 12 | 2009 |

Dynamics at infinity and other global dynamical aspects of Shimizu–Morioka equations M Messias, MRA Gouveia, C Pessoa Nonlinear Dynamics 69 (1-2), 577-587, 2012 | 10 | 2012 |

On the limit cycles for a class of continuous piecewise linear differential systems with three zones MFS Lima, C Pessoa, WF Pereira International Journal of Bifurcation and Chaos 25 (04), 1550059, 2015 | 6 | 2015 |

A class of reversible quadratic polynomial vector fields on S2 WF Pereira, C Pessoa Journal of Mathematical Analysis and Applications 371 (1), 203-209, 2010 | 6 | 2010 |

Homogeneous polynomial vector fields on the 2-dimensional sphere CG Pessoa Universitat Autònoma de Barcelona, 2006 | 6 | 2006 |

Bifurcations at infinity, invariant algebraic surfaces, homoclinic and heteroclinic orbits and centers of a new Lorenz-like chaotic system MRA Gouveia, M Messias, C Pessoa Nonlinear Dynamics 84 (2), 703-713, 2016 | 4 | 2016 |

Piecewise smooth dynamical systems: Persistence of periodic solutions and normal forms MRA Gouveia, J Llibre, DD Novaes, C Pessoa Journal of Differential Equations 260 (7), 6108-6129, 2016 | 3 | 2016 |

A hybrid symbolic-numerical approach to the center-focus problem A Mahdi, C Pessoa, JD Hauenstein Journal of Symbolic Computation 82, 57-73, 2017 | 2 | 2017 |

Limit cycles bifurcating from a period annulus in continuous piecewise linear differential systems with three zones MFS Lima, C Pessoa, WF Pereira International Journal of Bifurcation and Chaos 27 (02), 1750022, 2017 | 2 | 2017 |

On the reversible quadratic polynomial vector fields on S2 WF Pereira, C Pessoa Journal of Mathematical Analysis and Applications 396 (2), 455-465, 2012 | 2 | 2012 |

Homogeneous polynomial vector fields on S2 CG Pessoa | 1 | 2006 |

About Limit Cycles in Continuous Piecewise Linear Diﬀerential Systems MFS Lima, C Pessoa, W Pereira Proceeding Series of the Brazilian Society of Computational and Applied …, 2017 | | 2017 |

Limit cycles bifurcating from a period annulus in continuous piecewise differential systems with three zones MFS Lima, C Pessoa, WF Pereira arXiv preprint arXiv:1511.07200, 2015 | | 2015 |

On the Poincaré map and limit cycles for a class of continuous piecewise linear differential systems with three zones C Pessoa, WF Pereira, MFS Lima Proceeding Series of the Brazilian Society of Computational and Applied …, 2015 | | 2015 |