# Zeros of the Epstein zeta function to the right of the critical line

## TL;DR

This paper improves the asymptotic count of zeros of Epstein zeta functions to the right of the critical line, refining previous estimates by reducing the error term's growth rate.

## Contribution

It provides a sharper asymptotic formula for the number of zeros of Epstein zeta functions in certain regions, enhancing prior results by Gonek and Lee.

## Key findings

- Enhanced asymptotic formula for zero counts
- Reduced the error term's dependence on log T
- Extended understanding of zeros distribution for Epstein zeta functions

## Abstract

Let $E(s, Q)$ be the Epstein zeta function attached to a positive definite quadratic form of discriminant $D<0$, such that $h(D)\geq 2$, where $h(D)$ is the class number of the imaginary quadratic field $\mathbb{Q}(\sqrt{D})$. We denote by $N_E(\sigma_1, \sigma_2, T)$ the number of zeros of $E(s, Q)$ in the rectangle $\sigma_1 <\text{Re}(s)\leq \sigma_2$ and $T\leq \text{Im}(s)\leq 2T$, where $1/2<\sigma_1<\sigma_2<1$ are fixed real numbers. In this paper, we improve the asymptotic formula of Gonek and Lee for $N_E(\sigma_1, \sigma_2, T)$, obtaining a saving of a power of $\log T$ in the error term.