Boundary value problems for systems of differential, difference and fractional equations: positive solutions J Henderson, R Luca Academic Press, 2015 | 144 | 2015 |

On a system of fractional differential equations with coupled integral boundary conditions J Henderson, R Luca, A Tudorache Fractional Calculus and Applied Analysis 18 (2), 361-386, 2015 | 126 | 2015 |

Positive solutions for a system of nonlocal fractional boundary value problems J Henderson, R Luca Fractional Calculus and Applied Analysis 16, 985-1008, 2013 | 88 | 2013 |

Existence of positive solutions for a singular fractional boundary value problem J Henderson, R Luca Nonlinear Anal., Model. Control 22 (1), 99-114, 2017 | 79 | 2017 |

Existence of solutions for sequential fractional integro-differential equations and inclusions with nonlocal boundary conditions B Ahmad, R Luca Applied Mathematics and Computation 339, 516-534, 2018 | 77 | 2018 |

Nonexistence of positive solutions for a system of coupled fractional boundary value problems J Henderson, R Luca Boundary Value Problems 2015, 1-12, 2015 | 74 | 2015 |

Positive solutions for a system of fractional differential equations with coupled integral boundary conditions J Henderson, R Luca Applied Mathematics and Computation 249, 182-197, 2014 | 66 | 2014 |

Systems of Riemann–Liouville fractional equations with multi-point boundary conditions J Henderson, R Luca Applied Mathematics and Computation 309, 303-323, 2017 | 63 | 2017 |

Positive solutions for a system of second-order multi-point boundary value problems J Henderson, R Luca Applied Mathematics and Computation 218 (10), 6083-6094, 2012 | 54 | 2012 |

Existence of solutions for a system of fractional differential equations with coupled nonlocal boundary conditions B Ahmad, R Luca Fractional Calculus and Applied Analysis 21 (2), 423-441, 2018 | 53 | 2018 |

Existence of solutions for a sequential fractional integro-differential system with coupled integral boundary conditions B Ahmad, R Luca Chaos, Solitons & Fractals 104, 378-388, 2017 | 51 | 2017 |

Positive solutions to a system of semipositone fractional boundary value problems R Luca, A Tudorache Advances in Difference Equations 2014, 1-11, 2014 | 45 | 2014 |

Existence of positive solutions for a system of semipositone fractional boundary value problems J Henderson, R Luca Electronic Journal of Qualitative Theory of Differential Equations 2016 (22 …, 2016 | 43 | 2016 |

Existence and multiplicity of positive solutions for a system of fractional boundary value problems J Henderson, R Luca Boundary Value Problems 2014 (1), 60, 2014 | 41 | 2014 |

Boundary value problems for fractional differential equations and systems B Ahmad, J Henderson, R Luca | 40 | 2021 |

Positive solutions for a system of fractional differential equations with p-Laplacian operator and multi-point boundary conditions R Luca Nonlinear Analysis: Modelling and Control 23 (5), 771-801, 2018 | 34 | 2018 |

Existence and multiplicity of positive solutions for a system of higher-order multi-point boundary value problems J Henderson, R Luca Adv. Dyn. Syst. Applic 8 (2), 233-245, 2013 | 33 | 2013 |

Positive solutions for a system of higher-order multi-point boundary value problems J Henderson, R Luca Computers & Mathematics with Applications 62 (10), 3920-3932, 2011 | 33 | 2011 |

Positive solutions for a system of semipositone coupled fractional boundary value problems J Henderson, R Luca Boundary Value Problems 2016, 1, 2016 | 32 | 2016 |

Positive solutions for a semipositone singular Riemann–Liouville fractional differential problem RP Agarwal, R Luca International Journal of Nonlinear Sciences and Numerical Simulation 20 (7-8 …, 2019 | 31 | 2019 |