English

Subconvexity Problem on $\operatorname{GL}_3$ over number fields: the twist aspect

Number Theory 2026-02-24 v1

Abstract

Let FF denote a number field and let qOF\mathfrak{q}\subset O_F traverse a sequence of prime ideals with norm N(q)N(\mathfrak{q}) \to \infty and for each q\mathfrak{q}, let χF×A×^\chi \in \widehat{F^{\times}\setminus \mathbb{A}^\times} be a finite order character of conductor q\mathfrak{q}. For a fixed unitary cuspidal automorphic representation π\pi of GL3/F\operatorname{GL}_3/F we show that \begin{equation*} L(\pi \otimes \chi,\tfrac{1}{2})\ll \ N(\mathfrak{q})^{3/4-\kappa}.\end{equation*} holds for all κ<136\kappa< \frac{1}{36}.

Keywords

Cite

@article{arxiv.2602.20095,
  title  = {Subconvexity Problem on $\operatorname{GL}_3$ over number fields: the twist aspect},
  author = {Filippo Berta},
  journal= {arXiv preprint arXiv:2602.20095},
  year   = {2026}
}

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