3 papers
math.CV2025
A remark on the Beurling-Malliavin theorem in several variables
Alex Bergman
We use a lifting trick to show that the Beurling-Malliavin multiplier theorem extends to radial functions in several variables in a straightforward way. This simplifies an argument…
math.FA2025
Invariant Subspaces for Generalized Differentiation and Volterra Operators
Alexandru Aleman, Alex Bergman
In this paper we provide a far-reaching generalization of the existent results about invariant subspaces of the differentiation operator on $C^\inft…
math.CV2024
Hörmander's Inequality and Point Evaluations in de Branges Space
Alex Bergman
Let be an entire function of finite exponential type less than or equal to which is bounded by on the real axis and satisfies . Under these assumptions Hörman…