Pronormal subgroup
http://dbpedia.org/resource/Pronormal_subgroup an entity of type: WikicatSubgroupProperties
In mathematics, especially in the field of group theory, a pronormal subgroup is a subgroup that is embedded in a nice way. Pronormality is a simultaneous generalization of both normal subgroups and abnormal subgroups such as Sylow subgroups, . A subgroup is pronormal if each of its conjugates is conjugate to it already in the subgroup generated by it and its conjugate. That is, H is pronormal in G if for every g in G, there is some k in the subgroup generated by H and Hg such that Hk = Hg. (Here Hg denotes the conjugate subgroup gHg-1.)
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Pronormal subgroup
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3593621
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1123998402
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In mathematics, especially in the field of group theory, a pronormal subgroup is a subgroup that is embedded in a nice way. Pronormality is a simultaneous generalization of both normal subgroups and abnormal subgroups such as Sylow subgroups, . A subgroup is pronormal if each of its conjugates is conjugate to it already in the subgroup generated by it and its conjugate. That is, H is pronormal in G if for every g in G, there is some k in the subgroup generated by H and Hg such that Hk = Hg. (Here Hg denotes the conjugate subgroup gHg-1.) Here are some relations with other subgroup properties:
* Every normal subgroup is pronormal.
* Every Sylow subgroup is pronormal.
* Every pronormal subnormal subgroup is normal.
* Every abnormal subgroup is pronormal.
* Every pronormal subgroup is , that is, it has the .
* Every pronormal subgroup is paranormal, and hence polynormal.
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1736