Symmetry breakdown from bifurcation G Cicogna Lettere al Nuovo Cimento (1971-1985) 31 (17), 600-602, 1981 | 193 | 1981 |

Symmetry and perturbation theory in nonlinear dynamics G Cicogna, G Gaeta Springer Science & Business Media, 2003 | 143 | 2003 |

Effects of parametric perturbations on the onset of chaos in the Josephson-junction model: theory and analog experiments G Cicogna, L Fronzoni Physical Review A 42 (4), 1901, 1990 | 71 | 1990 |

On the relation between standard and μ-symmetries for PDEs G Cicogna, G Gaeta, P Morando Journal of Physics A: Mathematical and General 37 (40), 9467, 2004 | 55 | 2004 |

Classification of the extended symmetries of Fokker-Planck equations G Cicogna, D Vitali Journal of Physics A: Mathematical and General 23 (3), L85, 1990 | 48 | 1990 |

Spontaneous Breakings of Chiral Symmetries. II. Mass Relations and Particle Mixings G Cicogna, F Strocchi, RV Caffarelli Physical Review D 6 (1), 301, 1972 | 46 | 1972 |

Convergence of normal form transformations: the role of symmetries G Cicogna, S Walcher Acta Applicandae Mathematica 70 (1), 95-111, 2002 | 43 | 2002 |

Normal forms, symmetry and linearization of dynamical systems D Bambusi, G Cicogna, G Gaeta, G Marmo Journal of Physics A: Mathematical and General 31 (22), 5065, 1998 | 40 | 1998 |

Generalised symmetries of Fokker-Planck-type equations G Cicogna, D Vitali Journal of Physics A: Mathematical and General 22 (11), L453, 1989 | 39 | 1989 |

Partial Lie-point symmetries of differential equations G Cicogna, G Gaeta Journal of Physics A: Mathematical and General 34 (3), 491, 2001 | 37 | 2001 |

Noether theorem for μ-symmetries G Cicogna, G Gaeta Journal of Physics A: Mathematical and Theoretical 40 (39), 11899, 2007 | 36 | 2007 |

Modifying the onset of homoclinic chaos: application to a bistable potential G Cicogna, L Fronzoni Physical Review E 47 (6), 4585, 1993 | 36 | 1993 |

A theoretical prediction of the threshold for chaos in a Josephson junction G Cicogna Physics Letters A 121 (8-9), 403-406, 1987 | 36 | 1987 |

A discussion on the different notions of symmetry of differential equations G Cicogna arXiv preprint arXiv:1012.1935, 2010 | 26 | 2010 |

On the convergence of normalizing transformations in the presence of symmetries G Cicogna Journal of mathematical analysis and applications 199 (1), 243-255, 1996 | 26 | 1996 |

A nonlinear version of the equivalent bifurcation lemma G Cicogna Journal of Physics A: Mathematical and General 23 (24), L1339, 1990 | 26 | 1990 |

Solutions and symmetries of force-free magnetic fields E Tassi, F Pegoraro, G Cicogna Physics of Plasmas 15 (9), 092113, 2008 | 25 | 2008 |

Poincaré normal forms and Lie point symmetries G Cicogna, G Gaeta Journal of Physics A: Mathematical and General 27 (2), 461, 1994 | 24 | 1994 |

Normal forms and nonlinear symmetries G Cicogna, G Gaeta Journal of Physics A: Mathematical and General 27 (21), 7115, 1994 | 21 | 1994 |

A generalization of λ-symmetry reduction for systems of ODEs: σ-symmetries G Cicogna, G Gaeta, S Walcher Journal of Physics A: Mathematical and Theoretical 45 (35), 355205, 2012 | 20 | 2012 |