Centre of a group: Difference between revisions
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Revision as of 17:15, 6 November 2008
In group theory, the centre of a group is the subset of elements which commute with every element of the group.
Formally,
The centre is a subgroup, which is normal and indeed characteristic.
See also
References
- Marshall Hall jr (1959). The theory of groups. New York: Macmillan, 14.