Mossinghoff–Trudgian sign-change conjecture for weighted Liouville sums

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Let λ(n)\lambda(n) be the Liouville function and, for α∈R\alpha\in\mathbb{R}, define the weighted summatory function

Lα(x)=∑n≤xλ(n)nα.L_{\alpha}(x)=\sum_{n\leq x}\frac{\lambda(n)}{n^{\alpha}}.

Mossinghoff–Trudgian conjecture. For 0<α<1/20<\alpha<1/2, the weighted sum Lα(x)L_{\alpha}(x) changes sign infinitely often. The source notes that this has been proved unconditionally for α=0\alpha=0 and α=1\alpha=1, while no such sign changes had been found computationally in the stated open range.

References

Primary source

Peter Humphries, “The Distribution of Weighted Sums of the Liouville Function and Pólya's Conjecture”, arXiv:1108.1524 (2012).

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