Keywords

#exact_functor

Exact functor

Functor that preserves short exact sequences

In mathematics, particularly homological algebra, an exact functor is a functor that preserves short exact sequences. Exact functors are convenient for algebraic calculations because they can be 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.

Mon 4th

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Exact functor Homological algebra Derived functor Triangulated category T-structure Pre-abelian category Landweber exact functor theorem Ext functor Abelian category Topological half-exact functor
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