摘要
1.IntroductionLetB.betheunitballofC",S.betheboundaryofB.,anbetherotation--invariantpositiveBorelmeasureonS.forwhichu.(S.)=1,HP(B.)bethecalssicalHardyspace.SupposeW:B.--+Baisananalyticmap,foranyfEHP(B.),writethecompositionfoWasCaf.C.isusuallysaidtobea...
In this paper, the characterization of semi-Fredholm composition operators from H2(Bm) to H2(Bn) is given. As an application of the composition operators, the extension properties of analytic maps are discussed.
