Difference between revisions of "Subnormal (mathematics)"
From Ref
(New page: ===In group theory=== {{:subnormal subgroup}}) 
(No difference)

Latest revision as of 17:15, 20 January 2009
In group theory
Subnormal subgroup: A subgroup of a group such that there is an ascending chain of subgroups, starting from that subgroup to the whole group, with each member normal in the next. Such an ascending chain is termed a subnormal series.
A subnormal subgroup is a subgroup for which there exists a subnormal series of length at most . Particular examples are (normal subgroup), (2subnormal subgroup), (3subnormal subgroup).
Primary subject wiki entry: Groupprops:Subnormal subgroup
Related terms: Normal subgroup, 2subnormal subgroup, 3subnormal subgroup, ascendant subgroup, descendant subgroup, serial subgroup, subnormal series, normal series