Counterexample to: if $1\le p<q<\infty$, then $L^q(X)\subset L^p(X)$ with $\mu(X)=\infty$

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We know if $\mu(X)<\infty$, and if $1\le p<q<\infty$, then $L^q(X)\subset L^p(X)$ (can be proved by using Holder's inequality).

Is this still true if $\mu(X)=\infty$? Counterexample? Thanks.

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Hint: Try some negative powers of $x$ on $[1,\infty)$.