Artin transfer (group theory)

In group theory, the Artin transfer is a specific homomorphism associated with a certain class of groups called "finite groups." More specifically, it is related to the study of group extensions and the relationships between a group and its normal subgroups. The Artin transfer is particularly relevant in the context of modular representation theory and the representation theory of finite groups of Lie type, as well as in the study of central extensions and cohomology.