On Jackson-Type Inequalities for Functions Defined on a Sphere V. F. BabenkoV. G. DoroninA. A. Shumeiko OriginalPaper Pages: 347 - 363
Polynomial Form of de Branges Conditions for the Denseness of Algebraic Polynomials in the Space C w 0 A. G. Bakan OriginalPaper Pages: 364 - 381
Generalizations of Fox Homotopy Groups, Whitehead Products, and Gottlieb Groups M. GolasinskiD. GoncalvesP. Wong OriginalPaper Pages: 382 - 393
Asymptotic Equivalence of Triangular Differential Equations in Hilbert Spaces Dang Dinh ChauVu Tuan OriginalPaper Pages: 394 - 405
Asymptotic Behavior of Unbounded Solutions of Essentially Nonlinear Second-Order Differential Equations. I V. M. EvtukhovV. A. Kas'yanova OriginalPaper Pages: 406 - 426
On Some Solvable Classes of Nonlinear Nonisospectral Difference Equations O. A. Mokhon'ko OriginalPaper Pages: 427 - 439
Solvability and Trajectory-Final Controllability of Pseudohyperbolic Systems D. A. Nomirovskii OriginalPaper Pages: 440 - 452
Boundary-Value Problem for Linear Parabolic Equations with Degeneracies I. D. Pukal'skii OriginalPaper Pages: 453 - 465
On the Decomposition of a Diagonal Operator into a Linear Combination of Idempotents or Projectors V. I. Rabanovych OriginalPaper Pages: 466 - 473
Approximation of Continuous Functions of Low Smoothness by de la Vallee-Poussin Operators V. I. RukasovE. S. Silin OriginalPaper Pages: 474 - 480
Weighted Moduli of Smoothness and Sign-Preserving Approximation I. V. Smazhenko OriginalPaper Pages: 481 - 508
On Isometric Immersion of Three-Dimensional Geometries \(\widetilde{SL}_2\), Nil, and Sol into a Four-Dimensional Space of Constant Curvature L. A. Masal'tsev Brief Communications Pages: 509 - 516
On the Equivalence of Some Conditions for Convex Functions S. Yu. Tikhonov OriginalPaper Pages: 517 - 522
