A Remark on the Exactness of Inner Functions

Jon Aaronson*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

The boundary restriction of an inner function of the upper half plane leaves Lebesgue measure quasiinvariant. It may have a finite, or infinite, invariant measure. We show that ergodicity implies exactness for non-M6bius restrictions, using a recent result of Ch. Pommerenke, and exhibit exact, totally dissipative restrictions.

Original languageEnglish
Pages (from-to)469-474
Number of pages6
JournalJournal of the London Mathematical Society
Volumes2-23
Issue number3
DOIs
StatePublished - Jun 1981
Externally publishedYes

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