The Torsion-Freeness of Partially Ordered K0-Groups for a Class of Exchange Rings

A ring R is called orthogonal if for any two idempotents e and f in R, the condition that e and f are orthogonal in R implies the condition that [eR] and [fR] are orthogonal in K0（R）^＋, i.e., [eR]∧[fR] = 0. In this paper, we shall prove that the K0-group of every orthogonal, IBN2 exchange ring is al...

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Veröffentlicht in:	Shu xue yan jiu yu ping lun 2009, Vol.29 (2), p.367-370
1. Verfasser:	WU Kuo Hua LV Xin Min
Format:	Artikel
Sprache:	chi
Schlagworte:	IBN2环 偏序Ko群 无扭性 替换环 正交环
Online-Zugang:	Volltext
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