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And there is a natural graded B-algebra isomophism〓.where n is the subvariety of all the ad-nilpotent elements in the Lie algebra of B.

并且存在分次B-代数同构〓5这里n是B的Lie代数中伴随幂零元全体。

The algebra of quaternions, the first noncommutative algebra was thus sudd ly born.

四元数的代数，第一非交换的代数，就这样在一夜之间诞生了。

Tensor of the dual space and in the "Linear Algebra"(version 2) At the same time to explain, which is "Linear Algebra"(version 2) is a major feature.

对偶空间和张量在《线性代数》(第2版)同时讲解，这也是《线性代数》(第2版)的一大特色。

The global dimension of a connected graded algebra equals to the global dimension of it viewed as a DG algebra with zero differential.

任意一个连通分次代数，如果将它视为微分为0的连通DG代数，其左整体维数与其作为连通分次代数的整体维数是一致的。

Introduced Fan Boolean Algebra theory as a whole, after analyzing and studying of it, concluded that: the characteristic of Fan Boolean Algebra has determined that it can solve the extant problem of Data Mining to a certain extent, for example, it can guarantee the result after data mining to be usable , assured and construable;can solve the problems about expression difficulty of complicated concept, correlation of attributes emphasized incompletely and redundant examining;it can set up the unified model of Fan Boolean in a certain system;and it can promote the developmental research of new decision support system.

对泛布尔代数进行总体介绍，在分析和研究它的理论体系后，概括出：它的特性决定了它能在一定程度上解决数据挖掘的现存问题，比如可以保证数据挖掘结果的可用性、确定性及可解释性，可以解决复杂概念表达困难、属性间的相互关系强调不够、重复检验等问题；能就某一系统建立统一的泛布尔模型；并促进新型决策支持系统的开发研究，并对泛布尔代数与数据挖掘相结合的原理展开论述。

Especially, by use of the new point, the concept of atom is defined from which the essential implications of atom and nonseparation are brought in, and Stone theorem of finite Boolean algebra is extended to alleged atomic algebra.

特别本文用新的观点给出了&原子&的定义，这个定义给出了&原子&的&不可再分&的本来含义，并且将有限布尔代数的Stone定理推广到所谓原子代数中去。

Based on the knowledge of real f -algebra, the important properties of semi and unital complex f -algebra are studied.

以实f-代数的理论作为基础，主要讨论了半素和有单位元的复f-代数的重要性质。

In the second part, we study up on several algebra structures on L-Fuzzy algebra.

第二部分是关于L-Fuzzy代数中若干代数结构的研究。

It incarnates the basic thinking of studying other algebra structure in algebra.

它体现了代数学中研究其他代数结构的基本思路。

As a matter of fact we develop our study in the more general and more natural context of a theory ~ internally defined with respect to a topos of sheaves on a frame (i.e. a complete Heyting algebra; for example the algebra of open subsets of a topological space).

作为一个事实上我们在发展中的一个理论更普遍，更自然的环境研究国内关于对一帧的捆一topos中定义的（即完全Heyting代数，例如以开放的子集代数拓扑空间）。

Shop assistant: Please check at the door.

店员：请您到门口柜台交费。

In the end, transportation of PAHs in the environmental matrix was preliminarily investigated and discussed according to PAHs data of soils and sediments from a certain region in Shanghai. The result indicated that there are two or more pathways on PAHs transportation in the environmental matrix.

最后，对上海特定地区内PAHs在环境介质中的迁移径途进行了分析讨论，结果表明上海市土壤和沉积物等环境介质中PAHs的迁移存在多种途径。