Bipullbacks of fractions and the snail lemma
| Autor: | Jacqmin, P. -A., Mantovani, S., Metere, G., Vitale, E. M. |
|---|---|
| Rok vydání: | 2017 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| Popis: | We establish conditions giving the existence of bipullbacks in bicategories of fractions. We apply our results to construct a $\pi_0$-$\pi_1$ exact sequence associated with a fractor between groupoids internal to a pointed exact category. |
| Databáze: | arXiv |
| Externí odkaz: |
|