arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1003.5937math.CT
收藏

一类大阿贝尔范畴的可表示性定理

A representability theorem for some huge abelian categories

George Ciprian Modoi

摘要:

我们定义拟局部可表示范畴为局部可表示的上反射子范畴的大并集。在适当的假设下,证明了取值于阿贝尔群的拟局部可表示范畴上的正合反变函子的一个表示定理。证明了良生成的三角范畴的阿贝尔化是拟局部可表示的,并给出了Brown可表示性定理的一个新证明。还给出了不可表示的函子的例子。

英文摘要:

We define quasi--locally presentable categories as big unions of coreflective subcategories which are locally presentable. Under appropriate hypotheses we prove a representability theorem for exact contravariant functors defined on a quasi--locally presentable category taking values in abelian groups. We show that the abelianization of a well generated triangulated category is quasi--locally presentable and we obtain a new proof of Brown representability theorem. Examples of functors which are not representable are also given.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑