A uniqueness theorem for curves in E3-trigonometric polynomials Yu. A. Aminov OriginalPaper Pages: 691 - 697
Classification of the points of three-dimensional surfaces according to the Grassmann image A. A. BorisenkoYu. A. Nikolaevskii OriginalPaper Pages: 697 - 709
Minimal surfaces of constant Gaussian curvature in a pseudo-Riemannian sphere V. P. Gorokh OriginalPaper Pages: 709 - 714
General solution of equations of relative motion in a field of a plane gravitational wave V. I. Denisov OriginalPaper Pages: 714 - 717
Mean curvature of a surface in an n-dimensional space. I V. A. Dolzhenkov OriginalPaper Pages: 717 - 724
Algebraic surfaces with an infinite set of planes of oblique symmetry. I V. F. Ignatenko OriginalPaper Pages: 724 - 733
About one definition of the canonical plane of a surface in a projective space N. I. KovantsovP. A. Tadeev OriginalPaper Pages: 733 - 737
Three-dimensional flattening of a surface when two of its integral characteristics coincide S. E. Kozlov OriginalPaper Pages: 737 - 741
Number of triangular packings of a marked graph on a projective plane S. A. Lavrenchenko OriginalPaper Pages: 741 - 749
Universal coverings and projections of bodies of constant width V. V. Makeev OriginalPaper Pages: 750 - 752
Hyperbolically Sasakian and equidistant hyperbolically Kahlerian spaces I. MikeshG. A. Starko OriginalPaper Pages: 756 - 760
Example of a complete saddle surface in R4 with Gaussian curvature bounded away from zero G. Ya. Perel'man OriginalPaper Pages: 760 - 762
Conditions for the decomposition of ruled and parabolic surfaces in Sm and CPm V. Yu. Rovenskii OriginalPaper Pages: 763 - 770
Curvature lines of a two-dimensional non-linear non-holonomic manifold in E4 L. N. Sergienko OriginalPaper Pages: 771 - 773
A general formula of the solutions of the Peterson-Codazzi equations on a hypersphere V. T. Fomenko OriginalPaper Pages: 777 - 779
Extreme values of the sectional curvature of the Sasakian metric of T1(Mn, K) A. L. Yampol'skii OriginalPaper Pages: 779 - 787