activity
20052026
most citedCompact composition operators on weighted Hilbert spaces of analytic functions

39 citations · 54 across the 27 of their papers we have counts for

collaborators

33 papers

math.CA2026

Extremal functions and zero sets for the Dirichlet space

Alexander Borichev, Omar El-Fallah, Karim Kellay

We study the zeros of functions in the Dirichlet space. Using extremal functions, we produce a necessary and sufficient condition for a sequence of points in the unit disk to be a…

math.CA2026

The local Dirichlet integral and applications

Omar El-Fallah, Karim Kellay, Houssame Mahzouli

We study the local Dirichlet integral of distance functions and their behavior within the harmonic Dirichlet space. We provide estimates for the local Dirichlet integral of distanc…

math.CA2024

Cyclicity in Besov-Dirichlet spaces from the Corona Theorem

Yabreb Mohamed Egueh, Karim Kellay, Mohamed Zarrabi

Tolokonnikov's Corona Theorem is used to obtain two results on cyclicity in Besov-Dirichlet spaces.

math.CA2023

Oversampling and Donoho-Logan type theorems in model spaces

Anton Baranov, Philippe Jaming, Karim Kellay +1

The aim of this paper is to extend two results from the Paley--Wiener setting to more generalmodel spaces. The first one is an analogue of the oversampling Shannon sampling formula…

math.CA2023★ 4 cited

The Littlewood problem and non-harmonic Fourier series

Philippe Jaming, Karim Kellay, Chadi Saba

In this paper, we give a direct quantitative estimate of norms of non-harmonic trigonometric polynomials over large enough intervals. This extends the result by Konyagin and M…

math.CV2022

Multiple sampling and interpolation in Bergman spaces

Driss Aadi, Carlos Cruz, Andreas Hartmann +1

We study multiple sampling and interpolation problems with unbounded multiplicities in the weighted Bergman space, both in the hilbertian case p = 2 and the uniform case p = +$\inf…