@article{Guo2024, 
author = {Zhen Guo},
title = {On mean square of the error term of a multivariable divisor function},
year = {2024},
journal = {AIMS Mathematics},
volume = {9},
number = {10},
pages = {29197-29219},
keywords = {divisor function, mean square, Dirichlet series},
url = {https://www.sciopen.com/article/10.3934/math.20241415},
doi = {10.3934/math.20241415},
abstract = {Let  τ(n) be the Dirichlet divisor function and  k⩾2 be a fixed integer. We give an asymptotic formula of the mean square of   Δk(x)=∑n1,⋯,nk⩽xτ(n1⋯nk)−xkPk(log⁡x).}
}