I was wondering how I can show that any linear map $T: L^1(\Omega) \rightarrow L^{\infty}(\Omega)$ can be represented as an integral operator
$$T(f)(x):=\int_{\Omega} K(x,y)f(y) dy.$$
Does anybody know how to show this or where this follows from?
2026-04-25 00:54:45.1777078485
Linear map from $L^1 \rightarrow L^{\infty}.$
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