%A ZHAO Ping1, HU hua-bi1, XU Bo2 %T Maximal regular subsemigroups of orientation-preserving or orientation-reserving transformation semigroups I(n,r) %0 Journal Article %D 2011 %J JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE) %R %P 60-65 %V 46 %N 12 %U {http://lxbwk.njournal.sdu.edu.cn/CN/abstract/article_1339.shtml} %8 2011-12-20 %X

Let Pn be the orientation-preserving or orientation-reserving transformation semigroup on [n], and let I(n,r)={α∈Pn:|im(α)|≤r}(3≤r≤n-1).  The classification of maximal regular subsemigroup of semigroup  is obtained completely.