Keywords
- Normal Operator
- Closed Subset
- Compact Operator
- Toeplitz Operator
- Essential Spectrum
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Brown, L.G., Douglas, R.G., Fillmore, P.A. (1973). Unitary equivalence modulo the compact operators and extensions of C*-algebras. In: Fillmore, P.A. (eds) Proceedings of a Conference on Operator Theory. Lecture Notes in Mathematics, vol 345. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0058917
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DOI: https://doi.org/10.1007/BFb0058917
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