On K 2-group of a formal matrix ring

Authors
Fan, Zi Qiang Yin, Zhi Xiang
Citation
Fan, Zi Qiang et Yin, Zhi Xiang, On K 2-group of a formal matrix ring, Acta mathematica Sinica. English series (Print) , 28(9), 2012, pp. 1897-1906
Journal title
Acta mathematica Sinica. English series (Print) → ACNP
ISSN journal
14398516
Volume
28
Issue
9
Year of publication
2012
Pages
1897 - 1906
Database
ACNP
SICI code
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