Smoothness of Lipschitz-continuous graphs with nonvanishing Levi curvature G Citti, E Lanconelli, A Montanari | 95 | 2002 |

Pseudoconvex fully nonlinear partial differential operators: strong comparison theorems A Montanari, E Lanconelli Journal of differential equations 202 (2), 306-331, 2004 | 73 | 2004 |

Maximum and comparison principles for convex functions on the Heisenberg group CE Gutiérrez, A Montanari Taylor & Francis Group 29 (9-10), 1305-1334, 2005 | 67 | 2005 |

Nonsmooth Hörmander vector fields and their control balls A Montanari, D Morbidelli Transactions of the American Mathematical Society 364 (5), 2339-2375, 2012 | 38 | 2012 |

On the second order derivatives of convex functions on the Heisenberg group CE Gutiérrez, A Montanari Annali della Scuola Normale Superiore di Pisa-Classe di Scienze 3 (2), 349-366, 2004 | 38 | 2004 |

Balls defined by nonsmooth vector fields and the Poincaré inequality A Montanari, D Morbidelli Annales de l'institut Fourier 54 (2), 431-452, 2004 | 32 | 2004 |

Refraction problems in geometric optics CE Gutiérrez Fully Nonlinear PDEs in Real and Complex Geometry and Optics 2087, 95-150, 2014 | 31 | 2014 |

Integral formulas for a class of curvature PDE's and applications to isoperimetric inequalities and to symmetry problems V Martino, A Montanari Walter de Gruyter GmbH & Co. KG 22 (2), 255-267, 2010 | 27 | 2010 |

Curvature measures, isoperimetric type inequalities and fully nonlinear PDEs L Capogna, P Guan, CE Gutiérrez, A Montanari, P Guan Fully Nonlinear PDEs in Real and Complex Geometry and Optics: Cetraro, Italy …, 2014 | 26 | 2014 |

Real hypersurfaces evolving by Levi curvature: smooth regularity of solutions to the parabolic Levi equation A Montanari Communications in Partial Differential Equations 26 (9-10), 1633-1664, 2001 | 21 | 2001 |

The Levi Monge-Ampere equation: smooth regularity of strictly Levi convex solutions A Montanari, F Lascialfari The Journal of Geometric Analysis 14, 331-353, 2004 | 20 | 2004 |

Existence and uniqueness of Lipschitz continuous graphs with prescribed Levi curvature F Da Lio, A Montanari Annales de l'IHP Analyse non linéaire 23 (1), 1-28, 2006 | 19 | 2006 |

Step-s involutive families of vector fields, their orbits and the Poincaré inequality A Montanari, D Morbidelli Journal de Mathématiques Pures et Appliquées 99 (4), 375-394, 2013 | 17 | 2013 |

On the characteristic direction of real hypersurfaces in and a symmetry result V Martino, A Montanari Walter de Gruyter GmbH & Co. KG 10 (3), 371-377, 2010 | 17 | 2010 |

*C* ^{∞} regularity of solutions of an equation of Levi˘s type in *R* ^{2} ^{ n } ^{+1}G Citti, A Montanari Annali di Matematica Pura ed Applicata 180, 27-58, 2001 | 17 | 2001 |

On the subRiemannian cut locus in a model of free two-step Carnot group A Montanari, D Morbidelli Calculus of Variations and Partial Differential Equations 56, 1-26, 2017 | 16 | 2017 |

Almost exponential maps and integrability results for a class of horizontally regular vector fields A Montanari, D Morbidelli Potential Analysis 38 (2), 611-633, 2013 | 15 | 2013 |

A Frobenius-type theorem for singular Lipschitz distributions A Montanari, D Morbidelli Journal of Mathematical Analysis and Applications 399 (2), 692-700, 2013 | 14 | 2013 |

Strong solutions for the Levi curvature equation G Citti, A Montanari | 14 | 2000 |

Stability of isometric maps in the Heisenberg group N Arcozzi, D Morbidelli Commentarii Mathematici Helvetici 83 (1), 101-141, 2008 | 13 | 2008 |