On moments of classical orthogonal polynomials PN Sadjang, W Koepf, M Foupouagnigni Journal of Mathematical Analysis and Applications 424 (1), 122-151, 2015 | 52 | 2015 |

Characterization theorem for classical orthogonal polynomials on non-uniform lattices: the functional approach M Foupouagnigni, MK Nangho, S Mboutngam Integral Transforms and Special Functions 22 (10), 739-758, 2011 | 45 | 2011 |

On difference equations for orthogonal polynomials on nonuniform lattices1 M Foupouagnigni Journal of Difference Equations and Applications 14 (2), 127-174, 2008 | 45 | 2008 |

Laguerre-Hahn orthogonal polynomials with respect to the Hahn operator: fourth-order difference equation for the rth associated and the Laguerre-Freud equations recurrence … M Foupouagnigni These de Doctorat, Université Nationale du Bénin, Porto-Novo, 1998 | 43 | 1998 |

On connection, linearization and duplication coefficients of classical orthogonal polynomials DD Tcheutia | 34 | 2014 |

Analysis of non-linear recurrence relations for the recurrence coefficients of generalized Charlier polynomials W Van Assche, M Foupouagnigni Journal of Nonlinear Mathematical Physics 10 (Suppl 2), 231-237, 2003 | 33 | 2003 |

Laguerre-Freud equations for the recurrence coefficients of Dω semi-classical orthogonal polynomials of class one M Foupouagnigni, MN Hounkonnou, A Ronveaux Journal of computational and applied mathematics 99 (1-2), 143-154, 1998 | 31 | 1998 |

On solutions of holonomic divided-difference equations on nonuniform lattices M Foupouagnigni, W Koepf, M Kenfack-Nangho, S Mboutngam Axioms 2 (3), 404-434, 2013 | 28 | 2013 |

Fourth order q-difference equation for the first associated of the q-classical orthogonal polynomials M Foupouagnigni, A Ronveaux, W Koepf Journal of computational and applied mathematics 101 (1-2), 231-236, 1999 | 27 | 1999 |

Connection and linearization coefficients of the Askey–Wilson polynomials M Foupouagnigni, W Koepf, DD Tcheutia Journal of Symbolic Computation 53, 96-118, 2013 | 25 | 2013 |

Factorization of fourth-order differential equations for perturbed classical orthogonal polynomials M Foupouagnigni, W Koepf, A Ronveaux Journal of computational and applied mathematics 162 (2), 299-326, 2004 | 21 | 2004 |

Representations of q-orthogonal polynomials M Foupouagnigni, W Koepf, DD Tcheutia, PN Sadjang Journal of Symbolic Computation 47 (11), 1347-1371, 2012 | 20 | 2012 |

Fourth Order Difference Equation for the Associated Classical Discrete Orthogonal Polynomials M Foupouagnigni, W Koepf, A Ronveaux | 19 | 1998 |

On difference and differential equations for modifications of classical orthogonal polynomials M Foupouagnigni Kassel, Germany: University of Kassel. Habilitation thesis, 2006 | 15 | 2006 |

On fourth-order difference equations for orthogonal polynomials of a discrete variable: derivation, factorization and solutions M Foupouagnigni, W Koepf, A Ronveaux Journal of Difference Equations and Applications 9 (9), 777-804, 2003 | 14 | 2003 |

Characterization of the D w-Laguerre-Hahn Functionals M Foupouagnigni, F Marcellán Journal of difference equations and Applications 8 (8), 689-717, 2002 | 14 | 2002 |

On multivariate Bernstein polynomials M Foupouagnigni, M Mouafo Wouodjié Mathematics 8 (9), 1397, 2020 | 13 | 2020 |

On the modifications of semi-classical orthogonal polynomials on nonuniform lattices S Mboutngam, M Foupouagnigni, PN Sadjang Journal of Mathematical Analysis and Applications 445 (1), 819-836, 2017 | 12 | 2017 |

Divided-difference equation, inversion, connection, multiplication and linearization formulae of the continuous Hahn and the Meixner–Pollaczek polynomials DD Tcheutia, P Njionou Sadjang, W Koepf, M Foupouagnigni The Ramanujan Journal 45, 33-56, 2018 | 10 | 2018 |

On structure formulas for Wilson polynomials P Njionou Sadjang, W Koepf, M Foupouagnigni Integral Transforms and Special Functions 26 (12), 1000-1014, 2015 | 10 | 2015 |