Archiv der Mathematik

, Volume 112, Issue 6, pp 581–586 | Cite as

The sums of exceptional units in a finite ring

  • David DolžanEmail author


We prove a formula for the number of representations of an element in a finite basic ring as a sum of k exceptional units and find bounds for this number in an arbitrary finite ring with identity.


Exceptional unit Finite ring Matrix ring 

Mathematics Subject Classification

11T24 16U60 11B13 


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© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Department of Mathematics Faculty of Mathematics and PhysicsUniversity of LjubljanaLjubljanaSlovenia

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