Large values of \(L\)-functions on the \(1\)-line

Authors

  • A. B. Dixit Queen's University
  • K. Mahatab University of Helsinki

Keywords:

Dedekind zeta-function, values on 1-line

Abstract

In this paper, we study lower bounds of a general family of $L$- functions on the $1$-line. More precisely, we show that for any $F(s)$ in this family, there exists arbitrary large $t$ such that $F(1+it)\geq e^{\gamma_F} (\log_2 t + \log_3 t)^m + O(1)$, where $m$ is the order of the pole of $F(s)$ at $s=1$. This is a generalization of the same result of Aistleitner, Munsch and the second author for the Riemann zeta-function. As a consequence, we get lower bounds for large values of Dedekind zeta-functions and Rankin-Selberg $L$- functions of the type $L(s,f\times f)$ on the $1$-line.

Author Biographies

A. B. Dixit, Queen's University

Department of Mathematics and Statistics, Coleman Postdoctoral Fellow

K. Mahatab, University of Helsinki

Department of Mathematics and Statistics, postdoctoral researcher

Published

2021-03-10

Issue

Section

Articles