Central implies image-potentially characteristic
This article gives the statement and possibly, proof, of an implication relation between two subgroup properties. That is, it states that every subgroup satisfying the first subgroup property (i.e., central subgroup) must also satisfy the second subgroup property (i.e., image-potentially characteristic subgroup)
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This fact is related to: NIPC conjecture
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Statement
Suppose is a central subgroup of a group : is contained in the center of . Then, is an image-potentially characteristic subgroup of : there exists a surjective homomorphism and a characteristic subgroup of such that .
Related facts
- Normal subgroup contained in hypercenter is image-potentially characteristic
- Finite normal implies image-potentially characteristic
- Periodic normal implies image-potentially characteristic
- Central implies amalgam-characteristic
Facts used
- Central implies amalgam-characteristic
- Amalgam-characteristic implies image-potentially characteristic
Proof
The proof follows directly from facts (1) and (2).