Suppose R is a commutative ring with 1, and 2 is a unit of R. Let Tn(R) be the n × n upper triangular matrix modular ov......

刻画了特征不为2,3,5的域F上从对称矩阵空间Sn(F)到全矩阵空间Mm(F)的保幂等的线性算子(n≤m).类似地,立方幂等保持,群逆保持,{1}......

称环R是强P-clean的如果环R中的每一个元素都可以表示成一个幂等元与一个强幂零元之和.本文中我们研究了一些3×3矩阵环的强P-......

Suppose R is a commutative ring with 1, and 2 is a unit of R. LetTn(R) be the n× n upper triangular matrix modular ......