The topics in this collection range over several diverse areas, such as graph theory, continued fractions, complex manifolds, and group theory.

Table of Contents

• I. G. Dmitriev -- Characterization of the class of \(k\)-trees
• S. Kh. Darbinyan -- Directed cycles of any length in digraphs with large semidegrees
• A. V. Kostochka -- On the minimum of the Hadwiger number for graphs with a given mean degree of vertices
• O. G. Rudenskaya -- An upper bound on the number of edges of a hypergraph with a given diameter
• T. M. Zuparov -- On a theorem from the metric theory of continued fractions
• V. V. Iliev -- Surfaces with \(p_g=3\) and \(K^2=3\). Part I
• V. V. Iliev -- Surfaces with \(p_g=3\) and \(K^2=3\). Part II
• D. A. Leĭtes -- A formula for the characters of irreducible finite-dimensional representations of Lie superalgebras of series \(C\)
• V. Ya. Golodets and N. I. Nessonov -- Free groups, the \(T\)-property, and \(II_1\)-factors with different countable fundamental groups
• I. S. Bezverkhnyaya -- On the conjugacy of finite sets of subgroups in a free product of groups
• V. A. Grinblat -- On normalizers of Artin groups
• A. L. Vishnevetskiĭ -- Groups of class \(2\) and exponent \(p\) with commutator subgroup of order \(p^2\)
• N. A. Vavilov -- Subgroups of the full linear group over a ring which contain a group of block triangular matrices