Radial Operators on the Weighted Bergman Spaces over the Polydisk |
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Authors: | Li Ran Lu Yu Feng |
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Affiliation: | School of Mathematical Sciences, Dalian University of Technology, Dalian 116024, P. R. China |
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Abstract: | In this paper, we study radial operators in Toeplitz algebra on the weighted Bergman spaces over the polydisk by the (m, λ)-Berezin transform and find that a radial operator can be approximated in norm by Toeplitz operators without any conditions. We prove that the compactness of a radial operator is equivalent to the property of vanishing of its (0, λ)-Berezin transform on the boundary. In addition, we show that an operator S is radial if and only if its (m, λ)-Berezin transform is a separately radial function. |
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Keywords: | Radial operators (m λ)-Berezin transform weighted Bergman spaces Toeplitz operators |
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