Revista Matemática Iberoamericana
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Published online: 2009-08-31
Cyclic Blaschke products for composition operatorsEva A. Gallardo-Gutiérrez and Pamela Gorkin (1) Universidad de Zaragoza, Spain
(2) Bucknell University, Lewisburg, USA
In this work, cyclic Blaschke products for composition operators induced by disc automorphisms are studied. In particular, we obtain interpolating Blaschke products that are cyclic for nonelliptic automorphisms and we obtain a new characterization of Blaschke products that are not finite products of interpolating Blaschke products.
Keywords: Composition operator, cyclic vectors, Blaschke products
Gallardo-Gutiérrez Eva, Gorkin Pamela: Cyclic Blaschke products for composition operators. Rev. Mat. Iberoamericana 25 (2009), 447-470. doi: 10.4171/RMI/572