Applications
The maximum modulus principle has many uses in complex analysis, and may be used to prove the following:
- The fundamental theorem of algebra.
- Schwarz's lemma, a result which in turn has many generalisations and applications in complex analysis.
- The Phragmén–Lindelöf principle, an extension to unbounded domains.
- The Borel–Carathéodory theorem, which bounds an analytic function in terms of its real part.
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