Waring problem with the Ramanujan $τ$-function

Garaev, M. Z.; Garcia, V. C.; Konyagin, S. V.

Waring problem with the Ramanujan $τ$-function

Authors

Garaev, M. Z.

Garcia, V. C.

Konyagin, S. V.

Description

Let $τ(n)$ be the Ramanujan $τ$-function. We prove that for any integer $N$ the diophantine equation $$ \sum_{i=1}^{74000}τ(n_i)=N $$ has a solution in positive integers $n_1, n_2,..., n_{74000}$ satisfying the condition $$ \max_{1\le i\le 74000}n_i\ll |N|^{2/11}+1. $$ We also consider similar questions in the residue ring modulo a large prime $p.$
17 pages