Q82Section C (Part C)82 of 120

Automorphisms of the punctured unit disc

Let $\mathbb D^\times=\{z\in\mathbb C:0<|z|<1\}$ be the punctured unit disk and $f$ be a bijective holomorphic map of $\mathbb D^\times$ onto itself. Which of the following statements are true?

Multiple select: one or more options are correct. Select all of them, then submit — marks need the exact set.

Select every correct option, then submit.

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