%0 Journal Article
%T Area contraction for harmonic automorphisms of the disk
%A Ngin-Tee Koh
%A Leonid V. Kovalev
%J Mathematics
%D 2009
%I arXiv
%R 10.1112/blms/bdq083
%X A harmonic self-homeomorphism of a disk does not increase the area of any concentric disk.
%U http://arxiv.org/abs/0911.0623v1