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嵌任意半群入2ˉ双单半带

Keywords: 嵌入,半带,双单半带,2ˉ双单半带

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Abstract:

称半群S为2ˉ半带,若其中每个元素都可以写为S中两个幂等元的积.证明了任意半群可嵌入一个2ˉ双单半带.

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