Spectra of linear fractional composition operators on H2(BN)H^2(B_N)

preprint2010arXivOpen access

Abstract

We characterize the spectra of composition operators on the Hardy space H2(BN)H^2(B_N), when the symbols are elliptic or hyperbolic linear fractional self-maps of BNB_N. Therefore, combining with the result obtained by Bayart \cite{B10}, the spectra of all linear fractional composition operators on H2(BN)H^2(B_N) are completely determined.

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