**
N.V.Gosteva and L.K.Dodunova ** A generalization of the universality of power lacunary series | 1 |

**
M.K.Kravtsov and V.M.Kravtsov ** Types of maximum noninteger vertices of the relaxation polyhedron of the four-index axial assignment problem | 6 |

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V.V.Krasil’shchikov and A.V.Shutov ** Distribution of points of one-dimensional quasilattices with respect to a variable
module | 14 |

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A.S.Kuzmina and Yu.N.Maltsev ** Finite rings with complete bipartite zero-divisor graphs | 20 |

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A.V.Pechkurov ** Bisectorial operator pencils and the problem of bounded solutions | 26 |

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R.B.Salimov ** Some properties of analytic in a disk functions with applications to the study of the behavior of singular integrals | 36 |

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O.V.Tsokolova ** Nonholonomic torses of the first kind | 45 |

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A.V.Chernov ** A majorant-minorant criterion for the total preservation of global solvability of a functional operator equation | 55 |

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A.A.Shcheglova and P.S.Petrenko ** The *R*-observability and *R*-controllability of linear differential-algebraic systems | 66 |

Brief communications |

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O.V.Glazyrina and M.F.Pavlova ** The unique solvability of a certain nonlocal nonlinear problem with a spatial operator strongly monotone with respect to the gradient | 83 |

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A.N.Frolov ** Ranges of η-functions of η-like linear orderings | 87 |