English

Representation formulas for Hardy space functions through the Cuntz relations and new interpolation problems

Functional Analysis 2013-01-21 v2

Abstract

We introduce connections between the Cuntz relations and the Hardy space H_2 of the open unit disk . We then use them to solve a new kind of multipoint interpolation problem in H_2, where for instance, only a linear combination of the values of a function at given points is preassigned, rather than the values at the points themselves. We also consider the case of de Branges-Rovnyak spaces.

Keywords

Cite

@article{arxiv.1104.0621,
  title  = {Representation formulas for Hardy space functions through the Cuntz relations and new interpolation problems},
  author = {Daniel Alpay and Palle Jorgensen and Izchak Lewkowicz and Itzik Martziano},
  journal= {arXiv preprint arXiv:1104.0621},
  year   = {2013}
}

Comments

Updated bibliography and one section added on the case of de Branges Rovnyak spaces

R2 v1 2026-06-21T17:49:13.805Z