Geodesic

Tome 19 (1976) no. 3

Sommaire

Asymptotically sharp bounds for the remainder for the best quadrature formulas for several classes of functions
p. 313-322
The order of the best one-sided approximation by polynomials and splines in the $L_p$-metric
p. 323-329
Two sufficient conditions for the univalence of analytic functions
p. 331-346
Chebyshev subspaces of vector-valued functions
p. 347-352
Direct and inverse inequalities for $\varphi$-Fej\'er mean-square approximations
p. 353-364
Direct and inverse estimates for a singular Cauchy integral along a~closed curve
p. 365-380
An estimate of the curvature of level curves in a~class of univalent functions
p. 381-388
A~system of congruences
p. 389-392
Abelian varieties in characteristic $p$
p. 393-400
Groups of automorphisms of finite $p$-groups
p. 401-418
A~group of transformations connected with the Markov cubic surface
p. 419-428
The spectra of self-adjoint extensions of a~symmetric operator
p. 429-434
Absolute convergence of Fourier series in eigenfunctions of an elliptic operator
p. 435-448
Solution of the matrix equation $AX-XB=C$
p. 449-451
Nonsingular saddle points and the absence of mixing
p. 453-468
The rigidity of mirror-like protruded surfaces
p. 469-479