Math 2.0

concept

Semidirect product

Summary

A semidirect product builds a group from a group NN and a group HH that acts on NN by automorphisms. It generalises the direct product, and NN becomes a normal subgroup of the result.

What this node needs for W2
  • edge instance_of in: at least two examples (0 of 2)
  • edge not_instance_of in: at least one non-example (0 of 1)
  • edge specializes both: the more general notions and the special cases (0 of 1)

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Sources

  1. Web https://en.wikipedia.org/wiki/Semidirect_product, lead section

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