Normal curvature and the topological structure of multidimensional surfaces in a spherical space A. A. Borisenko OriginalPaper Pages: 675 - 678
A characteristic property of multidimensional cylindrical surfaces A. A. BorisenkoV. G. Ushakov OriginalPaper Pages: 678 - 683
Theory of the curvature of framed distributions Δ2 in E4 N. I. GlovaA. S. Usubalieva OriginalPaper Pages: 683 - 690
Two-dimensional minimal surfaces in a pseudo-Euclidean space V. P. Gorokh OriginalPaper Pages: 691 - 699
Conjugate points of the causal geodesics of Gödel's cosmological model V. I. Denisov OriginalPaper Pages: 699 - 705
Refinement of analogs of the generalized isoperimetric inequality V. I. Diskant OriginalPaper Pages: 705 - 707
Invariants of a group generated by oblique reflections in E11 V. F. Ignatenko OriginalPaper Pages: 708 - 710
Estimates of the principal radii of curvature of a closed convex hypersurface from the functions of its conditional radii of curvature V. N. Kokarev OriginalPaper Pages: 710 - 717
Figures with nondiscrete families of hyperplanes of oblique symmetry A. I. Krivoruchko OriginalPaper Pages: 717 - 719
The number of triangular packings of a vertex labelled graph on a torus S. A. Larenchenko OriginalPaper Pages: 719 - 728
One class of n-dimensional manifolds with closed geodesics V. T. Lisitsa OriginalPaper Pages: 728 - 735
Algebraic surfaces with the symmetry group of the polyhedron 321 V. A. Ternovskii OriginalPaper Pages: 740 - 743