<正>ForanoperatorweightedshiftS,theessentialspectrumσ_e(S)andtheindicesassociatedwithholesinσ_e(S)aredescribed.Moreover,BanachreducibilityofSisinvestigatedandaconditionforS~*tobeaCowen-Douglasoperatorischaracterized.
2001-03-13 5942
数学学报:英文版
2001年3期