%0 Journal Article %A Jorma Arhippainen %A Jukka Kauppi %T On dense ideals of $C^\ast $-algebras and generalizations of the Gelfand–Naimark Theorem %J Studia Mathematica %D 2013 %P 71-98 %V 215 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm215-1-5/ %R 10.4064/sm215-1-5 %G en %F 10_4064_sm215_1_5