show · ring.unit all knowls · up · search:

A unit in a commutative ring with one $R$ is an element $x \in R$ so that there exists $y \in R$ with $xy = 1$. The set of units in $R$ is denoted $R^*$ or $R^\times$ and forms a group.

Knowl status:
  • Review status: beta
  • Last edited by David Roe on 2020-10-13 17:52:58
Referred to by:
History: (expand/hide all) Differences (show/hide)