논문KCI 등재
On a topological divisor of zero in the Calkin Algebra
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Abstract
We give a simple proof the statement that if T isa bounded linear operator on a complex Hilbert space then T isFredholm if and only if (T) is not a TDZ, where() is the Calkinhomomorphism.
참고문헌 (1)
- "Invertibility andsingularity for bounded linear operators" (1988), Dekker
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