The index of normal Fredholm elements of $C^ *$-algebras
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- by J. A. Mingo and J. S. Spielberg PDF
- Proc. Amer. Math. Soc. 113 (1991), 187-192 Request permission
Abstract:
Examples are given of normal elements of ${C^*}$-algebras that are invertible modulo an ideal and have nonzero index, in contrast to the case of Fredholm operators on Hilbert space. It is shown that this phenomenon occurs only along the lines of these examples.References
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Additional Information
- © Copyright 1991 American Mathematical Society
- Journal: Proc. Amer. Math. Soc. 113 (1991), 187-192
- MSC: Primary 46L80; Secondary 19K56, 46L05
- DOI: https://doi.org/10.1090/S0002-9939-1991-1045144-3
- MathSciNet review: 1045144