Moving coframes and symmetries of differential equations O Morozov Journal of Physics A: Mathematical and General 35 (12), 2965, 2002 | 55 | 2002 |

Integrable dispersionless PDEs in 4D, their symmetry pseudogroups and deformations B Kruglikov, O Morozov Letters in Mathematical Physics 105 (12), 1703-1723, 2015 | 41 | 2015 |

The four-dimensional Martínez Alonso–Shabat equation: reductions and nonlocal symmetries OI Morozov, A Sergyeyev Journal of Geometry and Physics 85, 40-45, 2014 | 39 | 2014 |

Contact-equivalence problem for linear hyperbolic equations OI Morozov Journal of Mathematical Sciences 135 (1), 2680-2694, 2006 | 36 | 2006 |

Symmetry reductions and exact solutions of Lax integrable 3-dimensional systems H Baran, IS Krasil'shchik, OI Morozov, P Vojčák Journal of Nonlinear Mathematical Physics 21 (4), 643-671, 2014 | 34 | 2014 |

Contact integrable extensions of symmetry pseudo-groups and coverings of (2+ 1) dispersionless integrable equations OI Morozov Journal of Geometry and Physics 59 (11), 1461-1475, 2009 | 30 | 2009 |

Integrability properties of some equations obtained by symmetry reductions H Baran, IS Krasil′ shchik, OI Morozov, P Vojčák Journal of Nonlinear Mathematical Physics 22 (2), 210-232, 2015 | 27 | 2015 |

Nonlocal symmetries of integrable linearly degenerate equations: a comparative study H Baran, IS Krasilshchik, OI Morozov, P Vojčák Theoretical and Mathematical Physics 196 (2), 1089-1110, 2018 | 25 | 2018 |

A two-component generalization of the integrable rdDym equation OI Morozov SIGMA. Symmetry, Integrability and Geometry: Methods and Applications 8, 051, 2012 | 22 | 2012 |

Coverings over Lax integrable equations and their nonlocal symmetries H Baran, IS Krasil’shchik, OI Morozov, P Vojčák Theoretical and Mathematical Physics 188 (3), 1273-1295, 2016 | 20 | 2016 |

The four-dimensional Martínez Alonso–Shabat equation: differential coverings and recursion operators OI Morozov Journal of Geometry and Physics 85, 75-80, 2014 | 20 | 2014 |

A recursion operator for the universal hierarchy equation via Cartan’s method of equivalence O Morozov Open Mathematics 12 (2), 271-283, 2014 | 19 | 2014 |

Structure of symmetry groups via Cartan's method: survey of four approaches OI Morozov SIGMA. Symmetry, Integrability and Geometry: Methods and Applications 1, 006, 2005 | 18 | 2005 |

Cartan’s structure theory of symmetry pseudo-groups, coverings and multi-valued solutions for the Khokhlov–Zabolotskaya equation OI Morozov Acta Applicandae Mathematicae 101 (1), 231-241, 2008 | 17 | 2008 |

Infinitely many nonlocal conservation laws for the ABC equation with A + B + C ≠ 0 IS Krasil’shchik, A Sergyeyev, OI Morozov Calculus of Variations and Partial Differential Equations 55 (5), 1-12, 2016 | 16 | 2016 |

Contact equivalence problem for linear parabolic equations OI Morozov arXiv preprint math-ph/0304045, 2003 | 16 | 2003 |

Three-component nonlocal conservation laws for Lax-integrable 3D partial differential equations A Lelito, OI Morozov Journal of Geometry and Physics 131, 89-100, 2018 | 15 | 2018 |

Recursion operators and nonlocal symmetries for integrable rmdKP and rdDym equations OI Morozov arXiv preprint arXiv:1202.2308, 2012 | 15 | 2012 |

Contact equivalence of the generalized Hunter-Saxton equation and the Euler-Poisson equation OI Morozov arXiv preprint math-ph/0406016, 2004 | 15 | 2004 |

Five-dimensional Lax-integrable equation, its reductions and recursion operator H Baran, IS Krasil’shchik, OI Morozov, P Vojčák Lobachevskii Journal of Mathematics 36 (3), 225-233, 2015 | 13 | 2015 |