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IDEAL J *-ALGEBRAS | ||
| Journal of Sciences, Islamic Republic of Iran | ||
| مقاله 12، دوره 5، شماره 1، شهریور 1994 اصل مقاله (218.49 K) | ||
| چکیده | ||
| A C *-algebra A is called an ideal C * -algebra (or equally a dual algebra) if it is an ideal in its bidual A**. M.C.F. Berglund proved that subalgebras and quotients of ideal C*-algebras are also ideal C*-algebras, that a commutative C *-algebra A is an ideal C *-algebra if and only if it is isomorphicto C (Q) for some discrete space ?. We investigate ideal J*-algebras and show that the above results can be generalized to that of .I*-algebras. Furthermore, it is proved that if A is an ideal ,J*-algebra, then sp(a* a) has no nonzero limit point for each a in A and consequently A has semifinite rank and is a restricted product of its simple ideals | ||
| عنوان مقاله [English] | ||
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| چکیده [English] | ||
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