Article ID Journal Published Year Pages File Type
4594711 Journal of Number Theory 2009 7 Pages PDF
Abstract

The group of units in the ring Zm of residue classes consists of the residues with (a,m)=1. We determine the number of representations of a fixed residue class as the sum of two units in Zm, the sum of two nonunits, and the sum of mixed pairs, respectively.

Related Topics
Physical Sciences and Engineering Mathematics Algebra and Number Theory