Euler-Hausdorff matrix summability operator and trigonometric approximation of the conjugate of a function belonging to the generalized Lipschitz class
Hausdorff matrix summability means (\(\Delta_H\) means)
\((E,q)\) means and \(E^{(q)}\cdot \Delta_H\) summability operator
scientific article; zbMATH DE number 6252168