The Szego Projection: Sobolev Estimates in Regular Domains

Harold P. Boas
1987 Transactions of the American Mathematical Society  
The Szego projection preserves global smoothness in weakly pseudoconvex domains that are regular in the sense of Diederich, Fornaess, and Catlin. It preserves local smoothness near boundary points of finite type.
doi:10.2307/2000590 fatcat:hjmcm3dqxjek3frcsnmi2mn674