Spectra of some composition operators and associated weighted composition operators

Details Spectra of some composition operators and associated weighted composition operators Spectra of some composition operators and associated weighted composition operators

2009-08-10

arxiv.org/abs/0908.1405v1

Mathematics

Functional Analysis

17 pages, 1 figure

Scientific paper

We characterize the spectrum and essential spectrum of "essentially linear fractional" composition operators acting on the Hardy space H-two of the open unit disc U. When the symbols of these composition operators have Denjoy-Wolff point on the unit circle, the spectrum and essential spectrum coincide. Our work permits us to describe the spectrum and essential spectrum of certain associated weighted composition operators on the Hardy space.

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