English

Double commutants of multiplication operators on $C(K).$

Operator Algebras 2013-05-28 v1

Abstract

Let C(K)C(K) be the space of all real or complex valued continuous functions on a compact Hausdorff space KK. We are interested in the following property of KK: for any real valued fC(K)f \in C(K) the double commutant of the corresponding multiplication operator FF coincides with the norm closed algebra generated by FF and II. In this case we say that KDCPK \in \mathcal{DCP}. It was proved in \cite{Ki} that any locally connected metrizable continuum is in DCP\mathcal{DCP}. In this paper we indicate a class of arc connected but not locally connected continua that are in DCP\mathcal{DCP}. We also construct an example of a continuum that is not arc connected but is in DCP\mathcal{DCP}.

Keywords

Cite

@article{arxiv.1305.6286,
  title  = {Double commutants of multiplication operators on $C(K).$},
  author = {Arkady Kitover},
  journal= {arXiv preprint arXiv:1305.6286},
  year   = {2013}
}

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8 pages