Geodesic
$C^*$-algebras generated by semigroups
Izvestiâ vysših učebnyh zavedenij. Matematika, no. 10 (2009), pp. 68-71.

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In this paper we study $C^*$-algebras generated by a commuting family of isometric operators. Such algebras naturally generalize the Toeplitz algebra. We investigate $*$-automorphisms and ideals of $C^*$-algebras generated by semigroups.
Keywords: $C^*$-algebra, semigroup. 
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S. A. Grigoryan; A. F. Salakhutdinov. $C^*$-algebras generated by semigroups. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 10 (2009), pp. 68-71. http://geodesic.mathdoc.fr/item/IVM_2009_10_a7/

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