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1.In this paper,the ideals,bi-ideals and dual-principal bi-ideals of rectangular band,completely simple semigroup, semilattice,Clifford semigroup,matrix unit semigroup,bicyclic semigroup are depicted.
本文给出了矩形带,完全单半群,半格,clifford半群,矩阵单位半群的理想,双理想与双主双理想的刻画.收藏指正
2.A completely [0 ] simple semigroup S has the following property:If 0≠e∈E(S),a∈S,ea≠0,then there exsits f∈E(S) such that a=fea.
一个完全 [0 - ]单半群 S具有如下性质 :若 0≠ e∈ E(S) ,a∈ S且 ea≠ 0 ,则存在 f∈ E(S)使得 a =f ea.收藏指正
3.Simple ideal extension of a group of prime order by a finite commutative nilpotent semigroup on a tree
素数阶群按树上有限交换幂零半群单纯理想扩张收藏指正
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