3 papers
math.FA2021
Power-series summability methods in de Branges-Rovnyak spaces
Javad Mashreghi, Pierre-Olivier Parisé, Thomas Ransford
We show that there exists a de Branges-Rovnyak space on the unit disk containing a function with the following property: even though can be approximated by…
math.CV2020
Cesàro summability of Taylor series in weighted Dirichlet spaces
Javad Mashreghi, Pierre-Olivier Parisé, Thomas Ransford
We show that, in every weighted Dirichlet space on the unit disk with superharmonic weight, the Taylor series of a function in the space is -summable to the function in the…
math.FA2020
Failure of Approximation of Odd Functions by Odd Polynomials
Javad Mashreghi, Pierre-Olivier Parisé, Thomas Ransford
We construct a Hilbert holomorphic function space on the unit disk such that the polynomials are dense in , but the odd polynomials are not dense in the odd functions in …