idempo相关论文
Sernirings which are a disjoint union of rings form a variety S which contains the variety of all rings and the variety ......
类似于中心扩张,本文引入了广义形心扩张的概念,且研究了广义形心扩张的本原性。...
从幂等元的双序集性质和双序集E到半群J(x)×J(Y)的单同态φ的性质出发,讨论了一类五元素的双序集所对应的半群的结构.......
设R是任意带单位元的结合环,用素谱[Spect(R),Г^2(R)]的一些拓扑性质去刻画环的性质。对任意环R,用N(R)表示环R的素根,证明了:R/N(R)是强Harmoni......