Composition operators on Hardy-Sobolev spaces

Composition operators on Hardy-Sobolev spaces and $BMO$-quasiconformal mappings

“…The current state of the art and references to applications of Hardy spaces on domains of R n the reader will find in [13]. Composition operators on Hardy and Hardy-Sobolev spaces of analytic functions have been intensively studied for a long time and can be found, for example in [10,48].…”