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On the Normality of Derivatives of Functions, II
Author(s) -
Lappan Peter
Publication year - 1981
Publication title -
journal of the london mathematical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.441
H-Index - 62
eISSN - 1469-7750
pISSN - 0024-6107
DOI - 10.1112/jlms/s2-24.3.495
Subject(s) - normality , mathematics , psychology , statistics
In answer to the author's question in the original paper of the same title, it is proved that given a set E of positive integers there exists a bounded analytic function G ( z ) in the unit disc such that the k ‐th derivative G ( k ) ( z ) is a normal function if and only if k ∉ E . Also, an example of a univalent function is given for which the integral is not a normal function. This example leads to an explicit example of a non‐normal locally uniformly univalent function.