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半群TOPn(k)的格林(星)关系及富足性 被引量:10

The(*)-Green′s Relations and Abundance of Semigroup TOPn(k)
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摘要 广义格林关系为研究非正则半群提供了一个有效途径.基于这一方法,对半群TOPn(k)的元素和蛋盒图进行相关研究.得到了半群TOPn(k)的格林关系和星格林关系.进一步证明了:当1≤k≤n-1时,半群TOPn(k)是非正则富足半群. The generalized Green′s relations provides an effective way to study irregular semigroups.Based on this method,the elements of semigroup TOPn(k)and egg box graph have been studied,and the Green′s relations and(*)-Green′s relations of semigroup TOPn(k)been obtained.Furthermore,it is shown that when 1≤k≤n-1,the semigroup TOPn(k)is an irregular abundant semigroup.
作者 张前滔 赵平 罗永贵 ZHANG Qian-tao;ZHAO Ping;LUO Yong-gui(School of Mathematics Science, Guizhou Normal University, Guiyang 550025, China)
出处 《西南师范大学学报(自然科学版)》 CAS 北大核心 2020年第6期9-15,共7页 Journal of Southwest China Normal University(Natural Science Edition)
基金 国家自然科学基金项目(11861022,11461014)。
关键词 局部方向保序变换半群 格林关系 格林星关系 正则元 非正则富足半群 local orientation-preserving transformation semigroup Green′s relations (*)-Green′s relations regular element irregular abundant semigroup
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