Farrell and Mergelyan sets of \(H^ p\) spaces \((0<p<1)\)
The authors show, that for relatively closed subsets of the unit disk notions of Mergelyan and Farrell sets with respect to Hardy classes \(H^ p\), \(0<p<1\) (and even Smirnov class \(N^+)\), are equivalent and obtain a ``geometric'' characterization of those sets in terms of their ``size'' near the unit circle.
scientific article; zbMATH DE number 4136309