19414ErgodicTheoryLemma141IfTHHisalinearisometryonaHilbertspaceHthenthereisanorthogonaldirectsum145HKRwhere146KKerITKerITRRangeITandRistheclosureofRProofFirstnotethatR ID: 345618
19414.ErgodicTheoryLemma14.1.IfT:H!HisalinearisometryonaHilbertspaceH