Let G be an infinite group. If G has a normal elementary abelian subgroup, then G is irrecognizable.
设G是无限,若G存在正交换子,则G是不的.
Let G be an infinite group. If G has a normal elementary abelian subgroup, then G is irrecognizable.
设G是无限,若G存在正交换子,则G是不的.
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,证明了这类李代数是半单李代数且没有二维交换子代数。
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