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Multipliers of Dirichlet subspaces of the Bloch space

Complex Variables 2016-11-16 v1

Abstract

For 0<p<0<p<\infty we let Dp1p\mathcal D^p_{p-1} denote the space of those functions ff which are analytic in the unit disc D\mathbb D and satisfy D(1z)\spp1f(z)\sppdA(z)<\int_\mathbb D (1-| z|)\sp {p-1}| f'(z)| \sp p\,dA(z)<\infty . It is known that, whenever pqp\neq q, the only multiplier from Dp1p\mathcal D^p_{p-1} to Dq1q\mathcal D^q_{q-1} is the trivial one. However, if XX is a subspace of the Bloch space and 0<pq<0<p\le q<\infty, then XDp1pXDq1qX \cap \mathcal D^p_{p-1}\subset X\cap \mathcal D^q_{q-1} , a fact which implies that the space of multipliers \M(Dp1pX,Dq1qX)\M(\mathcal D^p_{p-1}\cap X, \mathcal D^q_{q-1} \cap X) is non-trivial. In this paper we study the spaces of multipliers \M(Dp1pX,vX)\M(\mathcal D^p_{p-1}\cap X, v\cap X) (0<p,q<0<p,q<\infty ) for distinct classical subspaces XX of the Bloch space. Specifically, we shall take XX to be HH^\infty , BMOABMOA and the Bloch space B\mathcal B .

Keywords

Cite

@article{arxiv.1211.5703,
  title  = {Multipliers of Dirichlet subspaces of the Bloch space},
  author = {Christos Chatzifountas and Daniel Girela and José Ángel Peláez},
  journal= {arXiv preprint arXiv:1211.5703},
  year   = {2016}
}

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26 pages