Uniform harmonic approximation of bounded functions
Authors:
Stephen J. Gardiner
Affiliation:
Department of Mathematics, University College Dublin, Dublin 4, Ireland
Abstract:
Let be an open set in and be a relatively closed subset of . We characterize those pairs which have the following property: every function which is bounded and continuous on and harmonic on can be uniformly approximated by functions harmonic on . Several related results concerning both harmonic and superharmonic approximation are also established.