61 citations · 282 across the 39 of their papers we have counts for
46 papers
Littlewood subordination for de Branges--Rovnyak spaces
Emmanuel Fricain, Andreas Hartmann, William T. Ross +1
In this paper, we study composition operators that act between different de Branges-Rovnyak spaces. Our main results are suggested by a paper of Mashreghi and Shabankhah concerning…
Identifying Bergman space functions from intervals
Andreas Hartmann, Marcu-Antone Orsoni
We characterize functions of a Bergman space on a square by their values and derivatives on the diagonals. This problem is connected with the reachable space of the one-dimensional…
Interpolation and random interpolation in de Branges-Rovnyak spaces
Andreas Hartmann, Giuseppe Lamberti
The aim of this paper is to characterize universal and multiplier interpolating sequences for de Branges-Rovnyak spaces H (b) where the defining function b is a general non-extreme…
Carleson's formula for some weighted Dirichlet spaces
Brahim Bouya, Andreas Hartmann
We extend Carleson's formula to radially polynomially weighted Dirichlet spaces.
Inhomogeneous Poisson processes in the disk and interpolation
Andreas Hartmann, Xavier Massaneda
We investigate different geometrical properties of the inhomogeneous Poisson point process associated to a positive, locally finite, -finite measure on the unit disk.…
Sharp estimates of the solutions to B{é}zout's polynomial equation and a corona theorem
Emmanuel Fricain, Andreas Hartmann, Ross William T. +1
In this paper, we obtain estimates for the solutions to the classical B{é}zout equation that are analogous to Carleson's solution to the corona theorem for the bounded analytic fun…