On immersions ofn-dimensional Lobachevskií space in 2n-dimensional Euclidean space withn principal direction fields Yu. A. Aminov OriginalPaper Pages: 1 - 5
An estimate for the region of regularity of solutions of certain nonlinear differential inequalities A. B. Brys'ev OriginalPaper Pages: 15 - 17
On the geodesic curvature of an integral curve of a two-dimensional pfaffian manifold inE 4 N. I. Glova OriginalPaper Pages: 18 - 21
Realization of nets of convex polyhedra with equiangular vertices. 3 A. M. Gurin OriginalPaper Pages: 22 - 35
Special conformal mappings in the general theory of relativity V. I. Denisov OriginalPaper Pages: 36 - 40
Stability in Aleksandrov's problem for a convex body, one of whose projections is a ball V. I. Diskant OriginalPaper Pages: 41 - 49
General metric spaces of linear elements of first lacunarity A. I. EgorovL. I. Egorova OriginalPaper Pages: 50 - 55
On the general equation of an algebraic surface having the symmetry group of the polyhedron 421 V. F. Ignatenko OriginalPaper Pages: 56 - 58
On rigidity and analytic inflexibility of surfaces of negative Gaussian curvature under a given direction of displacement of boundary points V. I. Mikhailovskií OriginalPaper Pages: 66 - 71
A sufficient condition for a point to be of swallowtail type on the envelope of a one-parameter family of surfaces V. V. Mozharskií OriginalPaper Pages: 72 - 76
The characterization of totally geodesic submanifolds ofS m andCP m V. Yu. Rovenskií OriginalPaper Pages: 87 - 94
Basis invariants of finite primitive groups generated by reflections in four-dimensional unitary space O. I. Rudnitskií OriginalPaper Pages: 95 - 99
The solution of the Cauchy problem of constructing an integral hypersurface of a first-order partial differential equation L. N. Sergienko OriginalPaper Pages: 100 - 102
On the visibility axiom for a two-dimensional Hadamard manifold S. A. Shcherbakov OriginalPaper Pages: 103 - 107
The curvature of the Sasaki metric of tangent sphere bundles A. L. Yampol'skií OriginalPaper Pages: 108 - 117