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Issue:
Semicommutativity of a Class of Matrix Rings
Author(s):
ZUO Zhanping
Pages:
10
-
12
Year:
2004
Issue:
1
Journal:
JOURNAL OF GANSU EDUCATION COLLEGE(NATURAL SCIENCE EDITION)
Keyword:
半交换环
;
reduced环
;
上三角矩阵环
;
Abstract:
设R是reduced环.记Un(R)为R上的n×n上三角矩阵环.则Un(R)不是半交换环.本文证明了Un(R)的子环Rn是半交换环.作为推论,证明了R平凡扩张T(R,R)也是半交换环.
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