On K 2-group of a formal matrix ring |
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| Authors: | Zi Qiang Fan Zhi Xiang Yin |
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| Affiliation: | 1. Department of Mathematics, Anhui University of Science and Technology, Huainan, 232001, P. R. China
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| Abstract: | Let S be a formal matrix ring, T the subring consisting of all diagonal elements, I the set consisting of all off-diagonal elements. Then I is a split radical ideal under certain conditions. In this paper, we show that K 2(s)?K 2(T)⊕K 2(S, I), and a presentation of K 2(S, I) is given. |
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| Keywords: | K2 group relative K2 group extension of groups |
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