Let $s,\nu$ be two complex variables. We have the double infinite sum: $$\sum_{j=1}^{\infty}\sum_{n=1}^{\infty}\frac{\mu(n)\sigma(j)}{n(js+\nu)(nsj+n\nu-1)}$$ Is there a way to simplify the summation, maybe to an ordinary single sum.
2026-04-13 21:42:19.1776116539
Simplifying a summation over Möbius and the divisor functions
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