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Consider Lebesgue spaces $L^p(\Omega)$, $\Omega$ is a bounded domain.

Let $f \in L^p(\Omega)$ for all $p$.

Is it true that $f \in L^\infty(\Omega)$?

Davide Giraudo
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jokersobak
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  • See the following question http://math.stackexchange.com/questions/66029/lp-and-lq-space-inclusion and the wiki link posted http://en.wikipedia.org/wiki/Lp_space#Embeddings – Chris Cave Jul 18 '14 at 09:57

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Hint: $\Omega=(0,1)$, $f(x)=\log x$.