The Approximation of Continuous Functions by Positive Linear Operators. Lecture

The Approximation of Continuous Functions by Positive Linear Operators. (= Lectu

The Approximation of Continuous Functions by Positive Linear Operators (L 336314

Approximation of Functions by G.G. Lorentz

Perturbation Theory for Linear Operators by Tosio Kato (Paperback, 1995)

Moments of linear positive operators and approximation.

The Adjoint of a Semigroup of Linear Operators by Jan van Neerven (English) Pape

Differentiability of six operators on nonsmooth functions and p-variation. Lectu