Centre of a ring: Difference between revisions
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Revision as of 09:06, 22 December 2008
In ring theory, the centre of a ring is the set of elements which commute with every element of the ring:
The centre is a subring.
References
- Serge Lang (1993). Algebra, 3rd ed. Addison-Wesley, 84. ISBN 0-201-55540-9.