论文标题
在有限范围有限转换半群的相对等级上
On relative ranks of finite transformation semigroups with restricted range
论文作者
论文摘要
在本文中,我们确定有限链上的所有转换的Semigroup $ t(x,y)的相对等级,其中$ y \ y \ y \ subseteq x $ modulo set $ op(x,y)$ op(x,y)$ t(x,y)$ t(x,x,y)$。此外,我们指出了Semigroup $ op(x,y)$ modulo的相对等级。在这两种情况下,我们都表征最小的相对生成集。
In this paper, we determine the relative rank of the semigroup $T(X,Y)$ of all transformations on a finite chain $X$ with restricted range $Y \subseteq X$ modulo the set $OP(X,Y)$ of all orientation-preserving transformation in $T(X,Y)$. Moreover, we state the relative rank of the semigroup $OP(X,Y)$ modulo the set $O(X,Y)$ of all order-preserving transformations in $OP(X,Y)$. In both cases we characterize the minimal relative generating sets.