Abstract
We bring an example which shows that in a theorem due to Cartwright, Spencer and Hayman concerning areally meanp-valent functions a multiplicative constant cannot be reduced to 1. (This is possible in the corresponding theorem for circumferentially meanp-valent functions).
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Reference
Hayman, W. K.Multivalent functions 1st ed., Cambridge University Press (1958).
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Aharonov, D. A remark on an areally meanp-valent function. Israel J. Math. 6, 119–120 (1968). https://doi.org/10.1007/BF02760177
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DOI: https://doi.org/10.1007/BF02760177