English

Algebra of convolution type operators with continuous data on Banach function spaces

Functional Analysis 2019-08-22 v1

Abstract

We show that if the Hardy-Littlewood maximal operator is bounded on a reflexive Banach function space X(R)X(\mathbb{R}) and on its associate space X(R)X'(\mathbb{R}), then the space X(R)X(\mathbb{R}) has an unconditional wavelet basis. As a consequence of the existence of a Schauder basis in X(R)X(\mathbb{R}), we prove that the ideal of compact operators K(X(R))\mathcal{K}(X(\mathbb{R})) on the space X(R)X(\mathbb{R}) is contained in the Banach algebra generated by all operators of multiplication aIaI by functions aC(R˙)a\in C(\dot{\mathbb{R}}), where R˙=R{}\dot{\mathbb{R}}=\mathbb{R}\cup\{\infty\}, and by all Fourier convolution operators W0(b)W^0(b) with symbols bCX(R˙)b\in C_X(\dot{\mathbb{R}}), the Fourier multiplier analogue of C(R˙)C(\dot{\mathbb{R}}).

Keywords

Cite

@article{arxiv.1908.07754,
  title  = {Algebra of convolution type operators with continuous data on Banach function spaces},
  author = {Cláudio A. Fernandes and Alexei Yu. Karlovich and Yuri I. Karlovich},
  journal= {arXiv preprint arXiv:1908.07754},
  year   = {2019}
}

Comments

To appear in the "Proceedings of Function Spaces XII"

R2 v1 2026-06-23T10:52:59.051Z