Periodic normal subgroup

Statement
A subgroup of a group is termed a periodic normal subgroup if it satisfies the following two conditions:


 * It is a normal subgroup of the whole group.
 * It is a periodic group: every element has finite order.

Stronger properties

 * Weaker than::Finite normal subgroup

Weaker properties

 * Stronger than::Amalgam-characteristic subgroup:
 * Stronger than::Potentially characteristic subgroup
 * Stronger than::Normal subgroup