科研之友
微信
新浪微博
Facebook
分享链接
摘要
Gentle and Todorov proved that in an abelian category with enough projective objects, the extension subcategory of two covariantly finite subcategories is covariantly finite. We prove a right triangulated version of Gentle-Todorov's theorem by introducing the notion of right homotopy cartesian square.
- 出版日期2018
- 单位清华大学
