摘要
设C是abelian范畴,Ω■■X是反变有限子范畴,则加法范畴(C/Ω)/(/Ω)≈X/有左三角结构,从而也是一个左三角范畴.
Let φ be an abelian category, W be a contravariantly finite subcategory of φ and W lohtain in X lohtain in φ Then the additive category (φ/W)/(X/W) ≈φ/X has a left triangulated structure, which is a left triangulated category.
出处
《福建师范大学学报(自然科学版)》
CAS
CSCD
北大核心
2008年第2期13-16,共4页
Journal of Fujian Normal University:Natural Science Edition
基金
福建省自然科学基金资助项目(Z0511021)
关键词
反变有限
共变有限
左三角范畴
contravariantly finite
convariantly finite
left triangulated category