In this paper, the Ext groups of Hardy modules over the polydisk algebra A(Dn) are cal-culated. Of particular importance is that the calculating of Ext-groups is closely related toharmonic analysis of polydisks. Final...In this paper, the Ext groups of Hardy modules over the polydisk algebra A(Dn) are cal-culated. Of particular importance is that the calculating of Ext-groups is closely related toharmonic analysis of polydisks. Finally, the authors point out that Ext-groups reveal rigidityof Hardy submodules over A(Dn) for n > 1.展开更多
文摘In this paper, the Ext groups of Hardy modules over the polydisk algebra A(Dn) are cal-culated. Of particular importance is that the calculating of Ext-groups is closely related toharmonic analysis of polydisks. Finally, the authors point out that Ext-groups reveal rigidityof Hardy submodules over A(Dn) for n > 1.
