Geodesic

Approximation of functions and operators

Some extremal problems for differentiable functions of one variable
p. 3-28
Approximation of linear operators, and related extremal problems
p. 29-42
Approximation of operators that are invariant under a~shift
p. 43-70
Convergence of an interpolation process for parabolic and cubic splines
p. 71-93
Kolmogorov estimates for derivatives in $L_2[0,\infty)$
p. 94-117
Extremal problems of functional interpolation, and mean interpolation splines
p. 118-173
Approximation by splines with a~given density of distribution of the nodes
p. 174-197