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一类广义变换半群的格林关系
引用本文:孙垒,裴惠生.一类广义变换半群的格林关系[J].纯粹数学与应用数学,2010,26(1):73-78.
作者姓名:孙垒  裴惠生
作者单位:河南理工大学数学与信息科学学院,河南,焦作,454000;信阳师范学院数学系,河南,信阳,464000
基金项目:河南省教育厅自然科学基金(2009A110007);;河南理工大学博士基金(B2009-56);;青年骨干教师项目
摘    要:设X是一个全序集,E是X上的一个凸等价关系.令 OE(X)={f∈TE(X):Ax,y∈X,x≤y→f(x)≤f(y)), 其中TE(X)是E-保持变换半群.对于取定的θ∈OE(X),在OE(X)上定义运算fog=fθg,使OE(X)成为广义半群OE(X;θ).对于有限全序集X上的凸等价关系E,本文刻画了广义半群OE(X;θ)的正则元,描述了这个半群的格林关系.

关 键 词:广义变换半群  保序映射  凸等价关系  正则元  格林关系

Green's relations on a kind of generalized transformation semigroup
SUN Lei,PEI Hui-sheng.Green''s relations on a kind of generalized transformation semigroup[J].Pure and Applied Mathematics,2010,26(1):73-78.
Authors:SUN Lei  PEI Hui-sheng
Institution:1.School of Mathematics and Information Science;Henan Polytechnic University;Jiaozuo 454000;China;2.Department of Mathematics;Xinyang Normal University;Xinyang 464000;China
Abstract:Let X be a totally ordered set and E be a convex equivalence on X. Denote
OE(X)={f∈TE(X):Ax,y∈X,x≤y→f(x)≤f(y)),
where TE(X) is an E-preserving transformation semigroup. Fix an element θ∈OE(X) and define an operation on OE(X) by f o g = fθg and OE(X) forms a semigroup which is called a generalized semigroup of OE(X) and denoted by OE(X;θ). In this paper, for the special convex equivalence E on a finite totally ordered set X, we characterize the regular elements and describe Green's relations for the generalized semigroup OE(X; θ).
Keywords:generalized transformation semigroup  order-preserving map  convex equivalence  regular element  Green's relations  
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