The Set of Finite Operators is Nowhere Dense
Canadian mathematical bulletin, Tome 32 (1989) no. 3, pp. 320-326

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A bounded linear operator A on a complex, separable, infinite dimensional Hilbert space is called finite if for each . It is shown that the class of all finite operators is a closed nowhere dense subset of
Herrero, Domingo A. The Set of Finite Operators is Nowhere Dense. Canadian mathematical bulletin, Tome 32 (1989) no. 3, pp. 320-326. doi: 10.4153/CMB-1989-046-4
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