Geodesic

Tome 8 (1970) no. 5

Sommaire

On the fiftieth birthday of S.\,B.~Stechkin
p. 543-544
Almost convex and Chebyshev sets
p. 545-550
Best approximations of functionals on certain sets
p. 551-562
The possibility of periodic spline interpolation
p. 563-573
The order of approximation by partial sums of lacunary series in Banach spaces
p. 575-582
The existence of a~best approximating element in $(F)$-space with integral metric
p. 583-594
Conditions for the localization of partial sums of S.\,M.~Nikol'skii's class of multiple trigonometric Fourier series
p. 595-606
Convergence of Riemann sums for functions which can be represented by trigonometric series with coefficients forming a~monotonic sequence
p. 607-618
Quasiconvex uniform-convergence factors for Fourier series of functions with a~given modulus of continuity
p. 619-623
Some estimates of solutions of degenerate $(k,0)$-elliptic equations
p. 625-634
Newton's method for the solution of systems of equalities and inequalities
p. 635-640
Trigonometric sums with exponential functions and the distribution of signs in repeating decimals
p. 641-652
Characteristic properties of strong integral and strong $B$-integral self-adjoint operators
p. 653-661
Some properties of Shannon functions
p. 663-674
Solid angles subtended by multidimensional ellipsoids
p. 675-679