Athanasios G. Arvanitidis

collaborators

2 papers

math.FA2011

Semigroups of Composition Operators on Hardy Spaces of the half-plane

We identify the semigroups consisting of bounded composition operators on the Hardy spaces $H^p(\U)$ of the upper half-plane. We show that any such semigroup is strongly continuous…

math.CV2010

Cesaro operators on the Hardy spaces of the half-plane

Athanasios G. Arvanitidis, Aristomenis G. Siskakis

In this article we study the Cesàro operator $C (f) (z) = \frac{1}{z} \int_{0}^{z} f (ζ) d ζ,$ and its companion operator $T$ on Hardy spaces of the upper half pla…