直积
在数学中,经常定义已知对象的直积(direct product)来给出新对象。例子有集合的乘积(参见笛卡尔积),群的乘积(下面描述),环的乘积和其他代数结构的乘积。拓扑空间的乘积是另一个例子。
单词 | Direct product of groups |
释义 |
Direct product of groups
中文百科
直积在数学中,经常定义已知对象的直积(direct product)来给出新对象。例子有集合的乘积(参见笛卡尔积),群的乘积(下面描述),环的乘积和其他代数结构的乘积。拓扑空间的乘积是另一个例子。
英语百科
Direct product of groups 直积![]() ![]() In group theory, the direct product is an operation that takes two groups G and H and constructs a new group, usually denoted G × H. This operation is the group-theoretic analogue of the Cartesian product of sets and is one of several important notions of direct product in mathematics. |
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