Strong commutativity preserving maps on subsets of matrices that are not closed under addition

Strong commutativity preserving maps on subsets of matrices that are not closed under addition
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DOI:
10.1016/j.laa.2014.06.003
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发表时间:
2014-10
影响因子:
1.1
通讯作者:
Cheng–Kai Liu
Cheng–Kai Liu
中科院分区:
数学3区
文献类型:
--
作者:
Cheng–Kai Liu

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设Mn(D)是除环D上所有n阶矩阵的环,其中n≥ 2是整数,GL n(D)是Mn(D)中所有可逆矩阵的集合.我们描述映射f:GLn(D)→ Mn(D)使得对任意x,y∈ GLn(D),[f(x),f(y)]=[x,y].对奇异矩阵也得到了类似的结果。
Let M n (D) be the ring of all n× n matrices over a division ring D, where n≥ 2 is an integer and let GL n (D) be the set of all invertible matrices in M n (D). We describe maps f: GL n (D)→ M n (D) such that [f (x), f (y)]=[x, y] for all x, y∈ GL n (D). The analogous result for singular matrices is also obtained.