本文選題：變換半群 + 保序��； 參考：《數(shù)學(xué)的實(shí)踐與認(rèn)識(shí)》2017年15期

【摘要】：設(shè)X_n={1,2,…,n}并賦予自然數(shù)序,MCK_n是X_n上核具有連續(xù)橫截面保序或反序變換所構(gòu)成的半群.K_n是MCK_n的最大正則子半群.本文將考慮K_n的理想K(n,r)={α∈K_n:|im(α)|≤r}(3≤r≤n-1).證明了K(n,r)的秩為(n-r+1)(n-r+2)(n-r+3)/6.
[Abstract]:Set up XS _ n = {1T _ 2,. It is also given that the natural number order MCK _ n is a semigroup with continuous cross-section conserved or inverse order transformation. K _ n is the largest regular subsemigroup of MCK_n. In this paper, we consider the ideal K _ n _ n of K _ n = {偽 鈭，

本文編號(hào)：1912741