adjoint functor

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English[edit]

Etymology[edit]

See Galois connection.

Noun[edit]

adjoint functor (plural adjoint functors)

  1. (category theory) One of a pair of functors such that the domain and codomain of one of them are identical to the codomain and domain of the other one, respectively, and such that there is a pair of natural transformations which turns the pair of functors into an adjunction.