algebras

His classmates were labouring with elementary algebra.

他的正在绞尽脑汁地演算初等数题。

He was not good at algebra in middle school.

他中时不擅长数。

In algebra, the sign X usually denotes an unknown quantity.

在数里, 符号X常用来表示未知数。

Four years after he graduated from school, Tom decided to dust off his algebra book.

汤姆从校毕业四年后, 决意重温数。

Moreover, the inner automorphism group of a basic quasi-hereditary algebra acts transitively on the set of its exact Borel subalgebras.

【摘要】： 正 It is proved that the exact Borel subalgebras of a basic quasi-hereditary algebra are conjugate to each other.

If you want to be a draftsman, a machinist, a molder, or a patternmaker, you'll need algebra and geometry and even trigonometry.

如果你想成为手工艺人、缝纫工、造型工或制模工，你要数和几何，甚至三角。

Further more,we prove that the cohomotopy groups is isomorphic to K1 -group of the continuous algebra on topological boundary of bounded domains in C.

在复平面C中，任意有界域的拓扑边界上连续函数数的K_1-群与其边界上的上伦群构。

Using the notion of coefficient matrix and maximal element.We prove that the Lie algebra is semi-simple and it has no abelian two dimensional subalgebra.

利用系数矩阵和极大项，证明了这类李数是半单李数且没有二维交数。

In this paper, we proved that the definition of a semilattice as a universal algebra and the definition of a semilattice as a partial ordered set are equivalent.

本文中，我证明了作为泛数的半格的定义与作为偏序集的半格的定义是等价的。

In this paper, the conclusion is that the intersection of lie subring of a Lie group is a Lie subring is obtained, moreover,it gives the Lie algebra of the Lie subring.

文章通过李群的性质得出了李群的两个李群的交依然是李群的结论,进而得出这一李群的李数形式。