题目：Norms of Composition Operators on the Unit Ball and the Polydisk
报告人：Professor Caixing Gu （California Polytechnic State University San Luis Obispo）
地点：致远楼101 室
时间：2018年7月24日（周二）上午10:30
Abstract: We extend norm estimates of composition operators of Michael Jury in 2007 on weighted Hardy and Bergman spaces of the unit ball to more general reproducing kernel spaces on the unit ball and the polydisk, for example, on the Dirichlet space of the unit ball and the Hardy space of the polydisk. For the composition operators with affine symbols on the unit ball, we find their exact norms which extend the corresponding results of Cowen in 1988 and Hurst in 1997.
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