Let Δ(x) denote the error term in the Dirichlet divisor problem, and
E(T) the error term in the asymptotic formula for the mean square of
∣ζ(1/2+it)∣. If E∗(t)=E(t)−2πΔ∗(t/2π) with $\Delta^*(x)
-\Delta(x) + 2\Delta(2x) - 1/2\Delta(4x)andweset\int_0^T E^(t),dt =
3\pi T/4 + R(T),thenweobtain$ \int_T^{T+H}(E^(t))^2,dt \gg
HT^{1/3}\log^3T and HT\log^3T \ll \int_T^{T+H}R^2(t),dt \ll HT\log^3T,
$forT^{2/3+\epsilon}\le H \le T$.