Nederivovatelné funkce
New characterizations for weighted composition operator from Zygmund type spaces to Bloch type spaces
Let be a holomorphic function and a holomorphic self-map of the open unit disk in the complex plane. We provide new characterizations for the boundedness of the weighted composition operators from Zygmund type spaces to Bloch type spaces in in terms of , , their derivatives, and , the -th power of . Moreover, we obtain some similar estimates for the essential norms of the operators , from which sufficient and necessary conditions of compactness of follows immediately.
New classification of analytic functions with negative coefficients.
Note on Riemann's paper ? Versuch einer allgemeinen Auffassung der Integration und Differentiation" Werke pp. 331?344
Note sur les vraies valeurs des expressions de la forme
Note sur une formule de Gauss
Notes on an approximate derivative