The limit case of Bernstein’s operators with Jacobi-weights PE Parvanov, BD Popov Math. Balkanica 8 (2-3), 165-177, 1994 | 57 | 1994 |

On estimating the rate of best trigonometric approximation by a modulus of smoothness BR Draganov, PE Parvanov Acta Mathematica Hungarica 131 (4), 360-379, 2011 | 10 | 2011 |

Weighted approximation by Baskakov-type operators KG Ivanov, PE Parvanov Acta Mathematica Hungarica 133 (1), 33-57, 2011 | 9 | 2011 |

Weighted Approximation by Meyer-König and Zeller-Type Operators KG Ivanov, PE Parvanov Constructive Theory of Functions, Sozopol 2011, 150-160, 2010 | 8 | 2010 |

Weighted approximation by the Goodman-Sharma operators KG Ivanov, PE Parvanov East J. Approx 15 (4), 473-486, 2009 | 6 | 2009 |

Weighted approximation by a class of Bernstein-type operators PE Parvanov Math. Balkanica (NS) 25, 1-2, 2011 | 5 | 2011 |

Weighted approximation of functions in L_ ∞ 0, ∞) L∞ 0,∞) I Gadjev, PE Parvanov Mediterranean Journal of Mathematics 14, 1-14, 2017 | 3 | 2017 |

Characterization of Best Multivariate Approximatoin from Below and from Above in Тerms of К-functional PE Parvanov Mаthеmаticа Bаlcаnicа (nеw sеriеs) 11 (1-2), 37-50, 1997 | 2 | 1997 |

Weighted approximation of functions by the Szász–Mirakjan–Kantorovich operator I Gadjev, PE Parvanov Results in Mathematics 76 (3), 158, 2021 | 1 | 2021 |

Weighted approximation of functions in *L*_{p}-norm by Baskakov-Kantorovich operatorPE Parvanov Analysis Mathematica 46, 821-842, 2020 | 1 | 2020 |

Weighted approximation by Kanotrovich type modification of Meyer-König and Zeller operator I Gadjev, P Parvanov, R Uluchev Annual of Sofia University St. Kliment Ohridski. Faculty of Mathematics and …, 2018 | 1 | 2018 |

Exact Constants in Estimations of the Error of the Quadrature Formulae of Simpson with the Averaged Moduli of Smoothness IA Parvanova, PE Parvanov | 1 | 2007 |

Characterization of Best Algebraic Approximatoin from Below and from Above in the Multivariate Case PE Parvanov Eаst Jоurnаl оf Apprоximаtiоn 2, 1999 | 1 | 1999 |

An Estimation of the Best Monotone Spline Approximation with the Averaged Moduli of Smoothness PE Parvanov Mаthеmаticа Bаlcаnicа (nеw sеriеs), под печат, 1998 | 1 | 1998 |

Strong Converse Inequality for Weighted Approximation of Functions by the Szász–Mirakjan–Kantorovich Operator I Gadjev, PE Parvanov, R Uluchev Results in Mathematics 79 (4), 1-15, 2024 | | 2024 |

WEIGHTED APPROXIMATION IN UNIFORM NORM BY MEYER-K¨ ONIG AND ZELLER OPERATORS I Gadjev, PE Parvanov Annual of Sofia University St. Kliment Ohridski. Faculty of Mathematics and …, 2017 | | 2017 |

Weighted Approximation of Functions in $$\varvec {L_\infty [0,\infty)} $$ L?[0,?) I Gadjev, PE Parvanov Mediterranean Journal of Mathematics, 2017 | | 2017 |