ArticleOriginal scientific text

Title

Composition operators: Nα to the Bloch space to Qβ

Authors 1, 2

Affiliations

  1. Institute of Analysis, TU-Braunschweig PK 14(Forum) D-38106 Braunschweig, Germany
  2. School of Mathematical Sciences, Peking University, Beijing 100871, China

Abstract

Let Nα,B and Q_β be the weighted Nevanlinna space, the Bloch space and the Q space, respectively. Note that B and Qβ are Möbius invariant, but Nα is not. We characterize, in function-theoretic terms, when the composition operator Cϕf=fϕ induced by an analytic self-map ϕ of the unit disk defines an operator Cϕ:NαB, BQβ, NαQβ which is bounded resp. compact.

Keywords

composition operator, boundedness, compactness, Nα, β, Q_β

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Pages:
245-260
Main language of publication
English
Received
1999-01-01
Accepted
1999-09-23
Published
2000
Exact and natural sciences