; TeX output 1999.01.20:1346 #x2gx<N cmbx12ONٚTHESP A CEg cmmi12Q2 cmmi8p ANDITSDY ADICCOUNTERPART K`y cmr10SVANTEUUJANSON DA- cmcsc10Abstract.|W*edeneadyadiccounterpart b> cmmi10Q^ 0er cmmi7dp`ofQpR,֏andstudysomerelations RÍDAbGetweenQp|=andQ^dp.F*orexample,afunctionon msbm10TbelongstoQp|=ifandonlyDAif(almost)allitstranslatesbGelongtoQ^dp.Conversely*,functionsinQp.nmaybeDAobtainedUUbyaveragingtranslatesoffunctionsinQ^dp.jVq @XQ cmr121. *- cmcsc10Introduction ,AThekspaceQp],!0