57 citations · 97 across the 6 of their papers we have counts for
12 papers
Hausdorff Matrices on the BMOA and Bloch spaces
Petros Galanopoulos, Alejandro Mahillo, Jesus Oliva-Maza +1
We determine the spectrum and Fredholm essential spectrum of Hausdorff operators on BMOA and the Bloch space , for suitable finite positive Borel measu…
The Cesaro operator is cyclic on
Anil Belli, Ugur Gul, William T. Ross +1
In this paper, we show that the Cesàro operator on the Hardy space , , is cyclic. Our techniques will involve semigroups.
Crescents and the real variable Cesaro operator
Anil Belli, Ugur Gul, William T. Ross +1
This paper explores a version of the classical Cesàro integral operator for the Lebesgue space where we discuss its norm, spectral properties, cyclicity, and invariant…
The Cesaro operator on L^2(0, 1)
Anil Belli, Ugur Gul, William T. Ross +1
This paper explores a version of the classical Ces`aro integral operator for the Lebesgue space L2(0, 1) where we discuss its norm, adjoint, spectral properties, and invariant subs…
Generators of -semigroups of weighted composition operators
Eva A. Gallardo-Gutiérrez, Aristomenis G. Siskakis, Dmitry Yakubovich
We prove that in a large class of Banach spaces of analytic functions in the unit disc an (unbounded) operator with analytic in $\math…
Semigroups of composition operators in analytic Morrey spaces
Petros Galanopoulos, Noel Merchán, Aristomenis G. Siskakis
Analytic Morrey spaces belong to the class of function spaces which, like BMOA, are defined in terms of the degree of oscillation on the boundary of functions analytic in the unit…
Generic non-extendability and total unboundedness in function spaces
V. Nestoridis, A. G. Siskakis, A. Stavrianidi +1
For a function space $X(\OO)$ satisfying weak assumptions we prove that the generic function in $X(\OO)$ is totally unbounded, hence non-extendable. We provide several examples of…
A family of Dirichlet-Morrey spaces
Petros Galanopoulos, Noel Merchán, Aristomenis G. Siskakis
To each weighted Dirichlet space , , we associate a family of Morrey-type spaces , , constructed by imposing growth conditions on…
The multiplicative Hilbert matrix
Ole Fredrik Brevig, Karl-Mikael Perfekt, Kristian Seip +2
It is observed that the infinite matrix with entries for appears as the matrix of the integral operator $\mathbf{H}f(s):=\int_{1/2}^{+\infty…
Mean Lipschitz conditions on Bergman space
P. Galanopoulos, A. G. Siskakis, G. Stylogiannis
For analytic on the unit disc let and , rotations and dilations respectively. We show that for in the Bergman space and $0<α\leq…
Generalized Hilbert Operators
Petros Galanopoulos, Daniel Girela, José Ángel Peláez +1
If is an analytic function in the unit disc $\D $ we consider the generalized Hilbert operator $\hg$ defined by {equation*}\label{H-g} \mathcal{H}_g(f)(z)=\int_0^1f(t)g'(tz)\,d…
Cesaro operators on the Hardy spaces of the half-plane
Athanasios G. Arvanitidis, Aristomenis G. Siskakis
In this article we study the Cesàro operator and its companion operator on Hardy spaces of the upper half pla…