Artigo Acesso aberto Revisado por pares

Sums of higher divisor functions

2020; Elsevier BV; Volume: 220; Linguagem: Inglês

10.1016/j.jnt.2020.08.009

ISSN

1096-1658

Autores

Guangwei Hu, Guangshi Lü,

Tópico(s)

Advanced Mathematical Theories

Resumo

Let dk(n) denote the k-th divisor function. In this paper, we study the asymptotic formula of the sum∑1≤n1,n2,…,nl≤xdk(n12+n22+⋯+nl2), where n1,n2,…,nl∈Z+, k≥4 and l≥3 are integers. Previously only the cases of k=2,3 are studied.

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