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<record version="5" id="5754">
 <title>Montel's theorem</title>
 <name>MontelsTheorem</name>
 <created>2004-04-11 22:08:01</created>
 <modified>2005-03-07 20:05:55</modified>
 <type>Theorem</type>
 <creator id="4157" name="jirka"/>
 <author id="4157" name="jirka"/>
 <classification>
	<category scheme="msc" code="30C99"/>
 </classification>
 <related>
	<object name="AscoliArzelaTheorem"/>
	<object name="SpaceOfAnalyticFunctions"/>
 </related>
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 <content>Suppose that $G \subset {\mathbb{C}}$ is a region.

\begin{thm}[Montel]
A set ${\mathcal{F}}$ of holomorphic functions $f\colon G \to {\mathbb{C}}$ is \PMlinkname{normal}{NormalFamily} if and only if ${\mathcal{F}}$ is
locally bounded.
\end{thm}

In other words a sequence of holomorphic functions $\{ f_n \}$ has a subsequence which converges uniformly 
on compact subsets to a holomorphic function $f \colon G \to {\mathbb{C}}$
if and only if the set $\{ f_n \}$ is locally bounded.

\begin{thebibliography}{9}
\bibitem{Conway:complexI}
John~B. Conway.
{\em \PMlinkescapetext{Functions of One Complex Variable I}}.
Springer-Verlag, New York, New York, 1978.
\end{thebibliography}</content>
</record>
