it is possible to evaluate sums over the set of Rational(adsbygoogle = window.adsbygoogle || []).push({});

so [tex] \sum_{q} f(q) [/tex] with [tex] q= \frac{m}{n} [/tex] and m and n are POSITIVE integers different from 0 ??

in any case for a suitable function is possible to evaluate

[tex] \sum_{q} f(qx) [/tex] with f(0)=0 ??

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# Sum over Rational numbers m/n

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