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有限弱Y-稳定变换半群的极小同余 被引量:2

Minimal congruences on finite transformation semigroups of weak Y-stabilizer
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摘要 设T〔X〕为有限集X上的全变换半群,Y为X的任意非空子集,引入有限弱Y-稳定变换半群W〔Y〕={α∈T〔X〕∶Yα■Y},证明了当W〔Y〕满足1<|Y|<|X|时,W〔Y〕有且仅有2个极小同余.另外,当|Y|=|X|(即Y=X)或1=|Y|<|X|时,W〔Y〕只有唯一的极小同余. Let T(X) be the full transformation semigroup on the finite set X,and Y a nonempty subset of X.Let W(Y)={α∈T(X)∶Yα Y}.Prove that W(Y) exactly has two minimal congruences when 1〈|Y|〈|X|;when |Y|=|X| or 1=|Y|〈|X|,W(Y) has only one minimal congruence.
出处 《浙江大学学报(理学版)》 CAS CSCD 北大核心 2011年第5期495-496,507,共3页 Journal of Zhejiang University(Science Edition)
关键词 弱Y-稳定 极小同余 Rees同余 weak Y-stabilizer minimal congruence Rees congruence
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参考文献6

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