A Wiener-Ikehara type theorem and its application to Chebyshev bounds for Beurling primes

TL;DR

This paper introduces a new Wiener-Ikehara theorem variant that derives bounds for functions based on their Laplace transform behavior, leading to improved criteria for Chebyshev bounds in Beurling prime systems.

Contribution

A novel Wiener-Ikehara theorem version that links boundary Laplace transform behavior to function bounds, enhancing Chebyshev bounds criteria for Beurling primes.

Findings

Established bounds for non-decreasing functions using Laplace transform conditions.

Derived new criteria for Chebyshev bounds in Beurling prime systems.

Weaker conditions than previous results are sufficient for Chebyshev bounds.

Abstract

We provide a new version of the Wiener-Ikehara theorem where one deduces bounds $$ 0< \liminf_{x\to\infty} \frac{S(x)}{e^{x}}\leq \limsup_{x\to\infty} \frac{S(x)}{e^{x}} <\infty $$ for (in particular) a non-decreasing function $S$ from a mild hypothesis on the boundary behavior of its Laplace transform on a vertical segment containing $s=1$. As an application, we establish new criteria for the validity of Chebyshev bounds for Beurling generalized prime number systems under weaker conditions than were known so far.