Urbas, John2015-12-080004-9727http://hdl.handle.net/1885/36645We construct a counterexample to a theorem of Jon Wolfson concerning the existence of globally smooth solutions of the second boundary value problem for Monge-Ampère equations in two dimensions, or equivalently, on the existence of minimal Lagrangian difA remark on minimal Lagrangian diffeomorphisms and the Monge-Ampere equation20072015-12-08