2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/160742Let $Δ(x)$ and $E(x)$ be error terms of the sum of divisor function and the mean square of the Riemann zeta function, respectively. In this paper their fourth power moments for short intervals of Jutila's type are considered. We get an asymptotic formula for $U$ in some range.33 PagesNumber Theory11N37, 11M06On the fourth power moment of $Δ(x)$ and $E(x)$ in short intervalstext