On Bloch functions and normal functions.
On Bloch functions and normal functions.
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DOI:
10.1515/crll.1974.270.12
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发表时间:
1974
期刊:
影响因子:
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通讯作者:
J. Clunie;J. Anderson;C. Pommerenke
中科院分区:
文献类型:
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作者:
J. Clunie;J. Anderson;C. Pommerenke
The space of all Bloch functions will be denoted by «^. There are several distinct characterisations of Bloch functions: (i) f € @l if and only if the f amily of functions f,(*) = ΐ(φ(*ϊ) f(?(0)); φ(ζ) = -ff^·, | a |< l, is finitely normal in D [28]. (ii) Let df(z) denote the largest schlicht disc around the point f(z) on the Riemann image surf ace by /. Then f € SS if and only if b = sup df(z) < oo. z€D This is equivalent to a well-known theorem of Bloch. In quantitative terms