1996
DOI: 10.1090/s0002-9939-96-03026-2
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On factor states of 𝐶*-algebras and their extensions

Abstract: Abstract. We obtain some results on the unique extension of (factor) states of C * -algebras which complement various existing results. Our results also lead to a class of C * -algebras whose states are σ-convex sums of factor states.

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Cited by 3 publications
(1 citation statement)
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“…On the other hand, there is a class of type-I C ¤ -algebras called dual, which have often appeared recently (see, for example, [2,3,6]), although it has been a long time since the notion of a dual C ¤ -algebra was rst introduced by Kaplansky [5] (see also [4, 4.7.20]). Recall that a C ¤ -algebra A is said to be dual if the sum of the minimal left ideals of A is dense in A, or, equivalently, A is isomorphic to a C ¤ -subalgebra of the C ¤ -algebra of all compact operators on some Hilbert space.…”
Section: Introductionmentioning
confidence: 99%
“…On the other hand, there is a class of type-I C ¤ -algebras called dual, which have often appeared recently (see, for example, [2,3,6]), although it has been a long time since the notion of a dual C ¤ -algebra was rst introduced by Kaplansky [5] (see also [4, 4.7.20]). Recall that a C ¤ -algebra A is said to be dual if the sum of the minimal left ideals of A is dense in A, or, equivalently, A is isomorphic to a C ¤ -subalgebra of the C ¤ -algebra of all compact operators on some Hilbert space.…”
Section: Introductionmentioning
confidence: 99%