摘要
通过引入χ-提升模的概念,讨论了两个χ-提升模的直和仍然是χ-提升模的充分条件.作为推论可得到两个提升模的直和仍然是提升模的充分条件.
The sufficient condition for that that the direct sum of two x-lifting modules will still be x-lifting module was discussed by introducing the concept of x-lifting module. As a corollary, such a sufficient condition that the direct sum of two lifting modules still is lifting one is obtained.
出处
《兰州理工大学学报》
CAS
北大核心
2005年第6期141-143,共3页
Journal of Lanzhou University of Technology
关键词
x-提升模
富足补模
模类
x-lifting module
amply supplemented module
module class
