I was fretting over this particular question which I found answered in the following link : https://math.stackexchange.com/a/1628972/817522 However now I have this notion that any sequence $T(x_n)$ will have the convergent 0(zero) subsequence. Then by characterization of compact operators should T be compact?
2026-03-30 20:57:58.1774904278
Compactness/non-compactness of a linear operator
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