Hostname: page-component-cd9895bd7-gbm5v Total loading time: 0 Render date: 2024-12-30T19:40:35.638Z Has data issue: false hasContentIssue false
  • English
  • Français

ANOTHER CRITERION FOR A RING TO BE PROJECTIVE-FREE

Published online by Cambridge University Press:  12 December 2005

P. M. COHN
P. M. COHN
Affiliation:
Department of Mathematics, University College London, Gower Street, London WC1IE 6BT, United Kingdom
Get access

Abstract

It is proved that a ring (≠0) is projective-free precisely when it has invariant basis number and every idempotent matrix not equal to I is non-full.

Keywords

16D40
Type
Papers
Information
Bulletin of the London Mathematical Society , Volume 37 , Issue 6 , December 2005 , pp. 857 - 859
Copyright
© The London Mathematical Society 2005

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)