homological algebra

Homological algebra plays such an important part in modern developments .

同调代数在现代发展中起了如此重要的作用。

Questions concerning homological algebra and defferential topology

关于同调代数与微分拓扑的若干注记

Ln chapter one , he gives a brief introduction to homological algebra , algebraic K-theory and the background of this paper .

第一章概述了同调代数与代数K&理论的发展历史及现状，并且对本文的研究背景作了简要介绍。设A是无单位元环，（？）

Functor of a tensor product is a main tool of the study of the category of mo-dules in the Homological Algebra ;

张量积函子是同调代数中研究模范畴的重要工具。

The theory of envelopes and covers takes an important part in theory of rings and modules , homological algebra , representation theory of algebras and so on .

因而模的包络、复盖理论在环模理论、同调代数和代数表示论中都有着非常重要的作用。