Document Type

Article

Publication Date

5-2008

Comments

Initially published in Journal of Mathematical Analysis and Applications, 341 (2008), no. 1, 636-639.

© Copyright 2003 American Mathematical Society

DOI: 10.1016/j.jmaa.2007.10.039

http://dx.doi.org/10.1016/j.jmaa.2007.10.039

Abstract

Building on techniques developed by C. C. Cowen and E. A. Gallardo-Gutiérrez [J. Funct. Anal. 238 (2006), no. 2, 447–462;MR2253727 (2007e:47033)], we find a concrete formula for the adjoint of a composition operator with rational symbol acting on the Hardy space H 2 . We consider some specific examples, comparing our formula with several results that were previously known.

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