The average order of an arithmetic function
type: Item
instance of: scholarly article
title: The average order of an arithmetic function
zbMATH Open document ID: 0070.27501
DOI: 10.1215/S0012-7094-56-02305-5
author: Emil Grosswald
published in: Duke Mathematical Journal
publication date: 1956-01-01T00:00:00Z
review text: Let \(F(n)\) denote the number of all prime divisors of \(n\), distinct or not. The author proves that \[ \sum_{_{\substack{ n\leq x\\ 2\nmid n}}} 2^{F(n)}= c_2x\log x-c_5 x+O(x^\varepsilon), \] where \(c_2\) and \(c_5\) are constants and \(c<0.84\). In the proof he uses the property that \(\zeta(s)=O\left(| t|^{1/2(L-1)+\varepsilon}\right)\) holds uniformly for \(\sigma\geq 1-l/2(L-1)\) and any \(\varepsilon>0\), where \(l\) is an integer \(\geq 3\) and \(L=2^{l-1}\). For nonintegral value \(l\) (as the author uses \(l=3.54\ldots\)), the previous result needs a proof.
Mathematics Subject Classification ID: 11N37
zbMATH DE Number: 3117653
zbMATH Keywords: average order
zbMATH Keywords: arithmetic function
MaRDI profile type: Publication
full work available at URL: s0012-7094-56-02305-5
OpenAlex ID: W2053886307
description: scientific article; zbMATH DE number 3117653