In this paper,it is proved that, let M be a tubular module, then there is a tubular module N,such that End(MN) is a quasi-hereditary algebra. And in the case of M bing a indeconposable tubular module, th...In this paper,it is proved that, let M be a tubular module, then there is a tubular module N,such that End(MN) is a quasi-hereditary algebra. And in the case of M bing a indeconposable tubular module, this paper characterizes the below bound of the number of indecomposable direct summands of N.展开更多
文摘In this paper,it is proved that, let M be a tubular module, then there is a tubular module N,such that End(MN) is a quasi-hereditary algebra. And in the case of M bing a indeconposable tubular module, this paper characterizes the below bound of the number of indecomposable direct summands of N.
基金Supported by the PhD Programs Foundation of Ministry of Education of China(200803570003)Anhui Provincial Natural Science Foundation Grant(10040606Y33)+2 种基金Scientific Research Foundation for the PhDs of Anhui University(33190055)Academic Innovation Team of Anhui University(KJTD001B)Project of Anhui Province of Excellent Young Talents in University(2009SQRZ017ZD)