We study the sum τ of divisors of the quadratic form m₁² + m₂² + m₃². Let . We obtain the asymptotic formula S₃(X) = C₁X³logX + C₂X³ + O(X²log⁷X), where C₁,C₂ are two constants. This improves upon the error term obtained by Guo and Zhai (2012).
@article{bwmeta1.element.bwnjournal-article-doi-10_4064-aa163-2-6,
author = {Lilu Zhao},
title = {The sum of divisors of a quadratic form},
journal = {Acta Arithmetica},
volume = {166},
year = {2014},
pages = {161-177},
zbl = {06288685},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-aa163-2-6}
}
Lilu Zhao. The sum of divisors of a quadratic form. Acta Arithmetica, Tome 166 (2014) pp. 161-177. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-aa163-2-6/