On the rank of the certain orthodox semigroups
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摘要: 设~ 是一个自然序集, 是~ 上的保序压缩奇异变换半群,是的所有正则元构成的正则子半群.利用Green等价关系和蛋合图,证明了的理想im 秩为.
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关键词:
- 秩
Abstract: Let be natural order set, be semigroup of the order-preserving and compressing singular transformations on , be regular subsemigroup consisting of all regular elements in .By Green equivalence and eggbox graph,we obtained that rank of ideals im be .-
Keywords:
- rank
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