On abelian 2-categories and derived 2-functors
Category Theory
2010-12-24 v4
Abstract
This is an extended version of my earlier articel "Projective and injective objects in symmetric categorical groups. arXiv:1007.0121v1." Several new facts added, including the material on the derived 2-functors and the proof of the Gabriel-Mitchel theorem and the Morita theory for 2-rings.
Cite
@article{arxiv.1007.4138,
title = {On abelian 2-categories and derived 2-functors},
author = {Teimuraz Pirashvili},
journal= {arXiv preprint arXiv:1007.4138},
year = {2010}
}
Comments
We add a new section on the cohomology of 2-groups