# Difference between revisions of "Centre of a ring"

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In [[ring theory]], the '''centre of a ring''' is the set of elements which commute with every element of the ring: | In [[ring theory]], the '''centre of a ring''' is the set of elements which commute with every element of the ring: | ||

## Latest revision as of 16:32, 13 February 2009

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.