We prove that for every x > q ≥ 1, and similar estimates for the Liouville function. We also give better constants when x/q is large.,
@article{bwmeta1.element.bwnjournal-article-doi-10_4064-aa165-1-1, author = {Olivier Ramar\'e}, title = {Explicit estimates on the summatory functions of the M\"obius function with coprimality restrictions}, journal = {Acta Arithmetica}, volume = {166}, year = {2014}, pages = {1-10}, zbl = {1316.11087}, language = {en}, url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-aa165-1-1} }
Olivier Ramaré. Explicit estimates on the summatory functions of the Möbius function with coprimality restrictions. Acta Arithmetica, Tome 166 (2014) pp. 1-10. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-aa165-1-1/