| Autor: |
Pawel Sobocinski, Tobias Heindel |
| Jazyk: |
angličtina |
| Rok vydání: |
2011 |
| Předmět: |
|
| Zdroj: |
Logical Methods in Computer Science, Vol Volume 7, Issue 1 (2011) |
| Druh dokumentu: |
article |
| ISSN: |
1860-5974 |
| DOI: |
10.2168/LMCS-7(1:14)2011 |
| Popis: |
Colimits that satisfy the Van Kampen condition have interesting exactness properties. We show that the elementary presentation of the Van Kampen condition is actually a characterisation of a universal property in the associated bicategory of spans. The main theorem states that Van Kampen cocones are precisely those diagrams in a category that induce bicolimit diagrams in its associated bicategory of spans, provided that the category has pullbacks and enough colimits. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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