Abstract
We describe a 2-dimensional analogue of track categories, called two-track categories, and show that it can be used to model categories enriched in 2-type mapping spaces. We also define a Baues-Wirsching type cohomology theory for track categories, and explain how it can be used to classify two-track extensions of a track category by a module over.
| Original language | English |
|---|---|
| Pages (from-to) | 59-106 |
| Number of pages | 48 |
| Journal | Journal of K-Theory |
| Volume | 8 |
| Issue number | 1 |
| Early online date | 5 May 2010 |
| DOIs | |
| Publication status | Published - Aug 2011 |
Bibliographical note
Funding Information:Acknowledgments: We would like to thank Hans Baues and the referee for many useful comments and corrections. The second author wishes to thank the Department of Mathematics of the University of Haifa for their hospitality while holding a postodoral position there during which this work was carried out. This research was supported by BSF grant 2006039.
Copyright © ISOPP 2010
Keywords
- 2-types
- Baues-Wirsching cohomology
- Double groupoids
- Simplicially enriched categories
- Track categories