A note on Pólya's observation concerning Liouville's function
arXiv:1112.4911
Abstract
We show that a certain weighted mean of the Liouville function lambda(n) is negative. In this sense, we can say that the Liouville function is negative "on average".
6 pages; In "Herman J. J. te Riele Liber Amicorum", CWI, Amsterdam, December 2010