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COMPOSITION OPERATORS ON FINITE RANK MODEL SUBSPACES
Published online by Cambridge University Press: 02 August 2012
Abstract
We give a complete description of bounded composition operators on model subspaces KB, where B is a finite Blaschke product. In particular, if B has at least one finite pole, we show that the collection of all bounded composition operators on KB has a group structure. Moreover, if B has at least two distinct finite poles, this group is finite and cyclic.
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- Research Article
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- Copyright © Glasgow Mathematical Journal Trust 2012
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