Consecutive moderate gaps between zeros of the Riemann zeta function

Abstract

Let $0<\gamma_1\leq \gamma_2 \leq \cdots $ denote the ordinates of nontrivial zeros of the Riemann zeta function with positive imaginary parts. For $c>0$ fixed (but possibly small), $T$ large, and $\gamma_n\leq T$, we call a gap $\gamma_{n+1}-\gamma_n$ between consecutive ordinates ``moderate'' if $\gamma_{n+1}-\gamma_n \geq 2\pi c/\log T$. We investigate whether infinitely often there exists $r$ consecutive moderate gaps between ordinates $\gamma_{n+1}-\gamma_n, \gamma_{n+2}-\gamma_{n+1}, \ldots , \gamma_{n+r}- \gamma_{n+r-1}$.