Looking for some positive valued simple functions which are less than (or equal to) the following two integrals (given in the following post).By simple I mean that they may not involve integrals or imaginary components or some infinite series. Again, the functions may not be as simple as f(x) =0.(adsbygoogle = window.adsbygoogle || []).push({});

Please find the integrals in the following post, as I could not fix the latex problem in this post.

Thanks for any idea.

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# Any possible lower bound!

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