中文

黎曼$\zeta$函数沿垂直线最大值的下界

数论 2015-09-01 v3

摘要

α(1/2,1)\alpha \in (1/2,1) 固定。我们证明,对于所有充分大的 TT,有 max0tTζ(α+it)exp(cα(logT)1α(loglogT)α) \max_{0 \leq t \leq T} |\zeta(\alpha+it)| \geq \exp\left(\frac{c_\alpha (\log T)^{1-\alpha}}{(\log \log T)^\alpha}\right) 其中可取 cα=0.18(2α1)1αc_\alpha = 0.18 (2\alpha-1)^{1-\alpha}。Montgomery 此前已获得相同结果,但其 cαc_\alpha 值较小。然而,我们的证明完全不同于 Montgomery 的方法,它结合了 Soundararajan 的“共振法”(resonance method)的修正版本以及 Hilberdink 的思想。这一新证明还使我们能够获得那些使得 ζ(α+it)|\zeta(\alpha+it)| 达到上述量级的 t[0,T]t \in [0,T] 的测度的下界。

关键词

引用

@article{arxiv.1409.6035,
  title  = {Lower bounds for the maximum of the Riemann zeta function along vertical lines},
  author = {Christoph Aistleitner},
  journal= {arXiv preprint arXiv:1409.6035},
  year   = {2015}
}

备注

23 pages. Version 2: removed a footnote concerning an alleged error in a paper of Titus Hilberdink (actually Hilberdink's proof is correct, and I myself was mistaken - sorry). Version 3: Some minor corrections and additions. The manuscript has been accepted for publication in Mathematische Annalen