A bound for reflections across Jordan curves.
Solutions to Beltrami differential equation with prescribed boundary correspondence in some plane domains are given.
We give a distortion theorem for quasiconformal automorphisms of the unit disk and its application to improving some results due to Douady and Earle.
We derive a sharp bound for the modulus of the Schwarzian derivative of concave univalent functions with opening angle at infinity less than or equal to πα, α ∈ [1,2].