Article ID Journal Published Year Pages File Type
6415197 Journal of Functional Analysis 2014 11 Pages PDF
Abstract

We give a full characterization of smooth symbols ψ:R→R for which the composition operator Cψ:C∞(R)→C∞(R), F↦F∘ψ has closed range. This generalizes in a special case the result of Kenessey and Wengenroth who gave such a characterization for smooth injective symbols ψ:R→Rd.

Related Topics
Physical Sciences and Engineering Mathematics Algebra and Number Theory
Authors
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