Exact Functor

In homological algebra, an exact functor is a functor that preserves exact sequences. Exact functors are convenient for algebraic calculations because they can be more directly applied to presentations of objects. Much of the work in homological algebra is designed to cope with functors that fail to be exact, but in ways that can still be controlled.

Read more about Exact Functor:  Definitions, Examples, Properties and Theorems, Generalization

Famous quotes containing the word exact:

    “Romanticism is found precisely neither in the choice of subjects nor in exact truth, but in a way of feeling.”
    —Charles Baudelaire (1821–1867)