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- W2359947585 abstract "In this paper we have given the conditions which are necessary and sufficient for a Hilbert space operator to have a unique self-adjoint approximant and a unique accretive approximant.we have also improved some results in[2] about the distance from a given operator to the set of all positive operators." @default.
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- W2359947585 date "1981-01-01" @default.
- W2359947585 modified "2023-09-26" @default.
- W2359947585 title "On the Approximation of Operators" @default.
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