Necessary condition for the regularity of branching processes B. A. Sevast'yanov OriginalPaper Pages: 234 - 238
Fourier coefficients of functions of class lip α with respect to complete orthonormalized systems S. V. Bochkarev OriginalPaper Pages: 239 - 242
Some extremal properties of positive trigonometric polynomials S. B. Stechkin OriginalPaper Pages: 248 - 255
Linear method for the approximation of differentiable functions Yu. N. Subbotin OriginalPaper Pages: 256 - 260
On the maximal dual pairs of invariant subspaces of J-self-adjoint operators H. Langer OriginalPaper Pages: 269 - 271
Almost-geodesic mappings of affinely-connected spaces and e-structures N. S. Sinyukov OriginalPaper Pages: 272 - 278
Regularization of Ritz method on an example of polynomial approximation N. S. BakhvalovM. Shtrekho OriginalPaper Pages: 293 - 299
Reports presented at the general meeting of the Mathematics Division of the Academy of Sciences of the USSR Properties of spectra of nonnegative self-adjoint extensions of elliptic operators and exact conditions for the convergence and Riesz summability of Fourier series of various classes of functions V. A. Il'in Report Pages: 312 - 316
