Commuting Idempotents of an H∗-algebra
نویسنده
چکیده
Commutative H *-algebra is characterized in terms of idempotents. Here we offer three characterizations. 1. Introduction. In the past, the author used commuting idempotents to characterize continuous functions defined on a certain space [3, 4]. For example , it was shown in [3] that a certain Banach algebra is isometrically isomorphic to the space C(S) of all continuous complex-valued functions on a totally disconnected compact space S. In the sequel, we use idempotents to characterize commutative H
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