在范畴论中，正合函子（或译作恰当函子）是保存有限极限的函子。在阿贝尔范畴中，这就相当于保存正合序列的函子。
... 正合时机 and about time too 正合方程式 exact equation 正合函子 exact functor ...
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右正合函子 [数] right exact functor
左正合函子 left exact functor
半正合函子 [数] half exact functor
右共合正变函子 [数] right exact covariant functor
右正合反变函子 [数] right exact contravariant functor
半正合反变函子 [数] half exact contravariant functor
左正合反变函子 left exact contravariant functor
左正合共变函子 left exact covariant functor
半正合共变函子 [数] half exact covariant functor
正合列是模论中研究函子问题的基本工具。
The exact sequences are the basic means on studying the functors of module theory.
给出了函子范畴中任意右正合保直和可加函子F与张量函子B自然等价的一个定理。
A theorem on natural equivalences between a right exact additive functor F which preserves sums and some tensor functor ?B over functor categories is given.
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