Abstract
We found several new equivalent characterizations of the boundedness of the differences of weighted differentiation composition operators from Bloch-type spaces to weighted-type spaces. Especially, we estimated its essential norm in terms of the n-th power of the induced analytic self-maps on the unit disk, which can provide a new and simple compactness criterion. Moreover, we applied our results to a classical example.
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We would like to thank the referee for useful comments and suggestions which improved the presentation of this paper.
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This paper was supported in part by the National Natural Science Foundation of China (Grant No. 11701422) and the Foundation of Tianjin Education Commission (Grant No. 2017KJ124).
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Liang, YX. New characterizations for differences of weighted differentiation composition operators from a Bloch-type space to a weighted-type space. Period Math Hung 77, 119–138 (2018). https://doi.org/10.1007/s10998-018-0239-y
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DOI: https://doi.org/10.1007/s10998-018-0239-y