Composition operators on the Lipschitz space in polydiscs |
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Authors: | Email author" target="_blank">Zehua?ZhouEmail author |
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Affiliation: | Department of Mathematics, Tianjin University, Tianjin 300072, China; LiuHui Center for Applied Mathematics, Nankai University and Tianjin University, Tianjin 300072, China |
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Abstract: | Let Un be the unit polydisc of Cn and φ = (φ
1,...,φ
n
) a holomorphic self-map of Un. Let 0 ≤α 1. This paper shows that the composition operator C is bounded on the Lipschitz space Lip(Un) if and only if there exists M > 0 such that for z ∈ Un. Moreover Cφ is compact on Lipα(Un) if and only if Cφ is bounded on Lipα(Un) and for every ε>0, there exists a δ > 0 such that whenever dist((z),∂Un). |
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Keywords: | Lipschitz space polydisc composition operator |
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