4 papers
Estimates of -functions and their -derivatives
Miron Bekker, Boris Mityagin
We provide a lower bound for a weighted ratio of functions and its derivative. Then we apply this result to estimate the norm of the operator associated with the CesÃ…
Remark Concerning Cesáro Operator on the Hardy Space in the Upper Half-Plane
Valentin V. Andreev, Miron B. Bekker, Joseph A. Cima
We consider Cesáro operator on the Hardy space in the upper half-plane for . In \cite{AS} it was proved that for all the spectrum of t…
On Generators of the Hardy and the Bergman Spaces
Valentin V. Andreev, Miron B. Bekker, Joseph A. Cima
A function which is analytic and bounded in the Unit disk is called a generator for the Hardy space or the Bergman space if polynomials in that function are dense in the correspond…
On the Ces`aro operator on the Hardy space in the upper half-plane
Valentin V. Andreev, Miron B. Bekker, Joseph A. Cima
We discuss the Ces`aro operator on the Hardy space in the upper half-plane. We provide a new simple proof of the boundedness of this operator, prove that this operator is equal to…