semi-group rings 半群环
skew group rings 斜群环
Zero-divisor Graphs of Group Rings 群环的零因子图
matrix group over rings 环上矩阵群
group-graded rings 群分次环
group graded rings 群分次环
Shruhan told the Beijing embassy official that his group at Pfizer spent five years planning raids on counterfeit drug rings, the cable says.
据密报显示,丹•舒汉告知美国驻华使馆,之前还在辉瑞的时候,他的团队曾花了五年时间详细计划了对假冒药品团伙的打击行动。
The weakly graded periodic radical concept for general group graded rings is established, the fact that it is a graded special radical is proved and its graded module characterization is presented.
对一般群分次环建立了弱分次周期根的概念,证明它是一个分次特殊根,给出了它的分次模刻划,讨论了它与自反周期根的关系。
This thesis mainly works on the normality of elementary subgroup of Unitary group over almost commutative rings.
本文主要对几乎可换环上酉群的基本子群的正规性进行了研究。
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