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  • C-ALGEBRAS GENERATED BY COM...
    MURPHY, GERARD J.

    The Rocky Mountain journal of mathematics, 1996, Volume: 26, Issue: 1
    Journal Article

    C*-algebras generated by commuting isometries are analyzed. It is shown that if a C*-algebra is generated by a semigroup of commuting isometries whose range projections commute, then the C*-algebra is nuclear. Not all C*-algebras generated by commuting isometries are nuclear—the universal C*-algebra generated by a commuting pair of isometries is shown to be nonnuclear.