English

Unified approach to spectral properties of multipliers

Functional Analysis 2020-02-18 v1 Complex Variables

Abstract

Let Bn\mathbb B_n be the open unit ball in Cn\mathbb C^n. We characterize the spectra of pointwise multipliers MuM_u acting on Banach spaces of analytic functions on Bn\mathbb B_n satisfying some general conditions. These spaces include Bergman-Sobolev spaces Aα,βpA^p_{\alpha,\beta}, Bloch-type spaces Bα\mathcal B_\alpha, weighted Hardy spaces HwpH^p_w with Muckenhoupt weights and Hardy-Sobolev Hilbert spaces Hβ2H^2_\beta. Moreover, we describe the essential spectra of multipliers in most of the aforementioned spaces, in particular, in those spaces for which the set of multipliers is a subset of the ball algebra.

Keywords

Cite

@article{arxiv.2002.07035,
  title  = {Unified approach to spectral properties of multipliers},
  author = {Mikael Lindström and Santeri Miihkinen and David Norrbo},
  journal= {arXiv preprint arXiv:2002.07035},
  year   = {2020}
}

Comments

19 pages. To appear in Taiwanese J. Math