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commutator

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In mathematics, the commutator gives an indication of the extent to which a certain binary operation fails to be commutative. There are different definitions used in group theory and ring theory.

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15 sections
Contents
  • Group theory
  • Identities (group theory)
  • Ring theory
  • Identities (ring theory)
  • Lie-algebra identities
  • Additional identities
  • Exponential identities
  • Graded rings and algebras
  • Adjoint derivation
  • General Leibniz rule
  • See also
  • Notes
  • References
  • Further reading
  • External links

In mathematics, the commutator gives an indication of the extent to which a certain binary operation fails to be commutative. There are different definitions used in group theory and ring theory.

== Group theory == The commutator of two elements, and , of a group , is the element .

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