For $K,f\in L^2(\mathbb R^d)$ the function $y\mapsto K(x-y)f(y)$ is integrable for every $x$

Initializing...

For $K,f\in L^2(\mathbb R^d)$ the function $y\mapsto K(x-y)f(y)$ is integrable for every $x$ · Prove2Me