Abstract
The authors express the essential norms of composition operators between Hardy spaces of the unit disc in terms of the natural Nevanlinna counting function.
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Project supported by the National Natural Science Foundation of China (No. 10771201) and the Anhui Provincial Natural Science Foundation of China (No. 090416233).
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Luo, L., Li, K. Essential norms of composition operators between Hardy spaces of the unit disc. Chin. Ann. Math. Ser. B 32, 209–214 (2011). https://doi.org/10.1007/s11401-011-0637-4
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DOI: https://doi.org/10.1007/s11401-011-0637-4