**
A.N.Abyzov ** Regular semiartinian rings | 1 |

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D.Kh.Dzhumabaev ** Holomorphic continuation of functions from closed hypersurfaces with singular edges | 9 |

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D.B.Zot’ev ** Fomenko–Zieschang invariants of integrable systems with symplectic singularities | 19 |

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V.A.Klyachin and A.A.Shirokii ** The Delaunay triangulation for multidimensional surfaces and its approximative properties | 27 |

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V.I.Maksimov ** On tracking solutions of parabolic equations | 35 |

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S.V.Maryushenkov ** Estimation of the norm of an operator inverse to a differential one | 43 |

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A.N.Mironov ** Application of the Riemann method to a factorized equation in an *n*-dimensional space | 48 |

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G.Mirsaburova ** A problem with a Frankl condition on the boundary of the ellipticity domain for the Gellerstedt equation with a singular coefficient | 55 |

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M.G.Plotnikov ** Coefficients of convergent multiple Haar series | 61 |

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M.Kh.Ruziev ** Problems with shifts for mixed elliptic-hyperbolic equations | 66 |

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S.Azarmi ** Foliations associated with the structure of a manifold over a Grassmann algebra of even
degree exterior forms | 76 |

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E.M.Vechtomov and E.N.Lubyagina ** The determinability of compacts by lattices of ideals and congruences of semirings of
continuous [0,1]-valued functions on them | 79 |

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I.A.Gordeeva and S.E.Stepanov ** Three classes of Weitzenbock manifolds | 83 |