Relative approximations and Maschke functors

被引：1

作者：

Zhu, B ^{[1
]}

机构：

[1] Tsing Hua Univ, Dept Math Sci, Beijing 100084, Peoples R China

来源：

BULLETIN OF THE AUSTRALIAN MATHEMATICAL SOCIETY | 2003年 / 67卷 / 02期

关键词：

D O I：

10.1017/S0004972700033682

中图分类号：

O1 [数学];

学科分类号：

0701 ; 070101 ;

摘要：

The notion of approximations relative to a functor is introduced and several characterisations of relative (dual) Maschke functors are given by using them. As an application, the injective objects in the category of comodules over a coring are described.

引用

页码：219 / 224

页数：6

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