Norms of Composition Operators with Rational Symbol

By Sean Effinger-Dean, Alan Johnson, Joseph Reed, and Jonathan E. Shapiro

This paper appears in the Journal of Mathematical Analysis and Applications, 324 (2006) 1062-1072.


We compute the norms of composition operators with rational symbols that satisfy certain properties, extending Christopher Hammond's methods on operators with linear fractional symbols. This leads to a host of new examples of composition operators whose norms are calculable.

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