Univalent function: Difference between revisions

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m In complex plane use modulus, not norm
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Any mapping <math>\phi_a</math> of the open [[unit disc]] to itself,
:<math>\phi_a(z) =\frac{z-a}{1 - \bar{a}z},</math>
where <math>||a||\le 1,</math> is univalent.
 
==Basic properties==