%0 Journal Article
%T 序S-系的弱拉回平坦性及同调分类<br>Weakly pullback flatness of S-posets and the homological classification
%A 赵梅梅
%J 山东大学学报（理学版）
%D 2015
%R 10.6040/j.issn.1671-9352.0.2014.244
%X 摘要： 设S是序幺半群, 在S上定义了满足条件(E')的序S-系, 引入了序S-系的弱拉回平坦性, 并研究了右Rees商序S-系对于序幺半群的同调分类问题。<br>Abstract: LetS be a pomonoid. S-poset satisfying condition (E') is defined and weakly pullback flatness is given over pomonoid. Furthermore, the homological classifications of pomonoids by their Rees factor S-posets are investigated
%K 条件(E')
%K 弱拉回平坦
%K Rees商序&lt
%K em&gt
%K S&lt
%K /em&gt
%K -系
%K &lt
%K br&gt
%K condition(E')
%K weakly pullback flat
%K Rees factor &lt
%K em&gt
%K S&lt
%K /em&gt
%K -poset
%U http://lxbwk.njournal.sdu.edu.cn/CN/10.6040/j.issn.1671-9352.0.2014.244