Commun. Korean Math. Soc. 2005; 20(4): 703-708
Printed December 1, 2005
Copyright © The Korean Mathematical Society.
Li Songxiao
JiaYing University
Let $\varphi(z)=(\varphi_1(z),\cdot\cdot\cdot,\varphi_n(z))$ be a holomorphic self-map of $\mathbb{D}^{n}$, where $\mathbb{D}^{n}$ is the unit polydisk of $\mathbb{C}^n$. The sufficient and necessary conditions for a composition operator to be bounded and compact from the Hardy space $H^2(\mathbb{D}^{n})$ into $\alpha$-Bloch space $\mathcal{B}^\alpha(\mathbb{D}^{n})$ on the polydisk are given.
Keywords: composition operator, Hardy space, $\alpha$-Bloch space
MSC numbers: Primary 47B35; Secondary 30H05
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