On Skew Armendariz Matrix Rings

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Gang YANGZhong Kui LIUYan Jun WANG School of MathematicsPhysics and Software EngineeringLanzhou Jiaotong UniversityGansu PRChinaDepartment of MathematicsNorthwest Normal UniversityGansu PRChina [1 ,2 ,2 ,2 ,1 ,730070 ,2 ,730070 ]
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O153.3 [环论];
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Let R be a ring.We show in the paper that the subring Un(R) of the upper triangular matrix ring Tn(R) is α-skew Armendariz if and only if R is α-rigid,also it is maximal in some non α-skew Armendariz rings,where α is a ring endomorphism of R with α(1) = 1.
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页码:1055 / 1060
页数:6
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