与同调论、K -理论和李群有关的技巧和概念被广泛运用。
Techniques and concepts related to homology theory, K-theory, and Lie groups have been widely used.
在此基础上，对于物理网络，应用图的同调论原理，将网络模型唯一地对应到数学模型。
On the basis of this method, network models for physical networks correspond to mathematical models uniquely when a homology principle of the graph is applied.
该语言是有意不断初级程度，避免层论的上同调理论。
The language is purposefully kept on an elementary level, avoiding sheaf theory and cohomology theory.
讨论论了R在小同调维数时的结构。
The structure of R with small homological dimension is discussed.
讨论论了R在小同调维数时的结构。
The structure of R with small homological dimension is discussed.
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