English

Weighted composition operators as Daugavet centers

Functional Analysis 2009-12-22 v1

Abstract

We investigate the norm identity uCϕ+T=u+T\|uC_\phi + T\| = \|u\|_\infty + \|T\| for classes of operators on C(S)C(S), where SS is a compact Hausdorff space without isolated point, and characterize those weighted composition operators which satisfy this equation for every weakly compact operator T:C(S)C(S)T : C(S)\to C(S). We also give a characterization of such weighted composition operator acting on the disk algebra A(D).A(D).

Keywords

Cite

@article{arxiv.0912.4032,
  title  = {Weighted composition operators as Daugavet centers},
  author = {Romain Demazeux},
  journal= {arXiv preprint arXiv:0912.4032},
  year   = {2009}
}

Comments

18 pages

R2 v1 2026-06-21T14:26:24.338Z