On $3\times 3$ strongly clean upper triangular matrices

Authors

  • A. Nikkhah Yazd University
  • Bijan Davvaz Yazd University
  • F. M. Maalek Ghaini Yazd University

DOI:

https://doi.org/10.30495/jme.v10i0.366

Keywords:

Strong cleanness, upper triangular matrix, idempotent matrix

Abstract

In this paper we construct all classes of $3\times 3$ strongly clean upper triangular matrices  ove $\mathbb Z$. Moreover, necessary and sufficient conditions under which a  $3\times 3$ upper triangular matrices ove $\mathbb Z$ is strongly clean are given.

Author Biographies

A. Nikkhah, Yazd University

Bijan Davvaz, Yazd University

F. M. Maalek Ghaini, Yazd University

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Published

2015-12-23

Issue

Section

Vol. 10, No 1, (2016)