Bücher von V. Totik

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Preliminaries . * . * . * . * * . 8 . * . Examples of Various Step-Weight Functions cp(x) . * . * . * . * . 9 . The K-Functional and the Modulus of Continuity ... 10 . The Upper Estimate, Kr.tp(f, tr)p ~ Mw;(f, t)p, Case I . 12 . 16 . 20 . A Modified K-Functional . 24 . 26 . 28 .