Exact Functors

Some articles on exact functors, functor, exact:

Pre-abelian Category - Exact Functors
... In general category theory, a functor is called left exact if it preserves all finite limits and right exact if it preserves all finite colimits ... (A functor is simply exact if it's both left exact and right exact.) In a pre-abelian category, exact functors can be described in particularly simple terms ... First, recall that an additive functor is a functor F C → D between preadditive categories that acts as a group homomorphism on each hom-set ...

Famous quotes containing the word exact:

    Reading maketh a full man; conference a ready man; and writing an exact man.
    Francis Bacon (1561–1626)