### Table of Contents

#### Analytical methods in mathematics

Some comments on the paper "O jednom O-inverznom stavu" by Vojislav G. Avakumović | |

Oleg I. Klesov, Josef G. Steinebach | 5–10 |

Dirichlet problem in a ball for Laplace’s equation with Laplacian with respect to a measure | |

Vladyslav Shram | 11–18 |

Alternative construction of surface measure on a finite-dimensional space | PDF (Українська) |

Bohdan M. Snizhko | 19–31 |

Approximation of analytic functions by linear methods of summation of Taylor series | PDF (Українська) |

Mykola A. Veremii, Mykola V. Haevskyi, Petro V. Zaderei | 33–46 |

Cauchy problem for the heat equation with Laplacian with respect to a measure | PDF (Українська) |

Dmytro M. Yakymets | 47–54 |

Generalization of the notions of a numerical series and infinite product | PDF (Українська) |

Viktor Yuskovych | 55–60 |

#### Application of mathematics in related sciences

Application of robust optimization for a linear model of operation of a small enterprise | PDF (Українська) |

Iryna V. Alieksieieva, Tetiana I. Perevozniuk | 61–73 |

Using of mathematical models for analyzing of the results in psychological Guilford test | PDF (Українська) |

Oleksandr O. Dykhovychnyi, Nataliia V. Kruglova, Ihor O. Moskalov | 75–89 |

Methods for identification of probability distribution of random variables from data samples with R statistical computing language | PDF (Українська) |

Oleksandr O. Dykhovychnyi, Nataliia V. Kruglova, Olha I. Virstiuk | 91–100 |

#### Methods of teaching and history of mathematics

On different types of uniform convergence of functional series | PDF (Українська) |

Victor O. Haidey, Lidiia B. Fedorova | 101–116 |

Scientific heritage of Ukrainian mathematician V. K. Dzyadyk (to the centennial of the birth) | PDF (Українська) |

Petro V. Zaderei, Nadiya M. Zaderei, Galyna D. Nefodova | 117–129 |