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Main Authors: Hansen, Peter Reinhard, Tong, Chen
Format: Preprint
Published: 2025
Subjects:
Online Access:https://arxiv.org/abs/2506.12112
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author Hansen, Peter Reinhard
Tong, Chen
author_facet Hansen, Peter Reinhard
Tong, Chen
contents We derive an integral expression $G(z)$ for the reciprocal gamma function, $1/Γ(z)=G(z)/π$, that is valid for all $z\in\mathbb{C}$, without the need for analytic continuation. The same integral avoids the singularities of the gamma function and satisfies $G(1-z)=Γ(z)\sin(πz)$ for all $z\in\mathbb{C}$.
format Preprint
id arxiv_https___arxiv_org_abs_2506_12112
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle A Unifying Integral Representation of the Gamma Function and Its Reciprocal
Hansen, Peter Reinhard
Tong, Chen
Complex Variables
Statistics Theory
We derive an integral expression $G(z)$ for the reciprocal gamma function, $1/Γ(z)=G(z)/π$, that is valid for all $z\in\mathbb{C}$, without the need for analytic continuation. The same integral avoids the singularities of the gamma function and satisfies $G(1-z)=Γ(z)\sin(πz)$ for all $z\in\mathbb{C}$.
title A Unifying Integral Representation of the Gamma Function and Its Reciprocal
topic Complex Variables
Statistics Theory
url https://arxiv.org/abs/2506.12112