Let \(f\) be an automorphism of the unit disc \(|z|<1\). Assume that \(f\) fixes two points. Show that \(f(z)=z\) for all \(z\) in the unit disc.
Question
Math 6210 • Real Analysis
2000 • Question 6
Question
2000 • Question 6
Let \(f\) be an automorphism of the unit disc \(|z|<1\). Assume that \(f\) fixes two points. Show that \(f(z)=z\) for all \(z\) in the unit disc.