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arXiv · 2410.20342

On the second integral moment of $L$-functions

Liangxun Li
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Abstract

Assume that the generalized Ramanujan conjecture holds on the automorphic $L$-function $L(s, \pi)$ on $\GL_d$ over $\mathbb{Q}$ with $d\geq 3$, we can obtain a small log-saving non-trivial bound on the second integral moment of $L(1/2+it, \pi)$. Specifically the bound \[ \int_{T}^{2T}\Big|L\big(\frac{1}{2}+it, \pi\big)\Big |^2 \dd t\ll_{\pi} \frac{T^{\frac{d}{2}}}{\log^{\eta_d}T} \] holds for a small constant $\eta_d>0$.

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Liangxun Li. 2024-10-27. On the second integral moment of $L$-functions. https://arxiv.org/abs/2410.20342

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