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CORNER, Alexander (2019). A universal characterisation of codescent objects. Theory and Applications of Categories, 34 (24), 684-713.
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Corner-UniversalCharacterisationCodescent(VoR).pdf - Published Version All rights reserved. Download (407kB) | Preview |
Official URL: http://www.tac.mta.ca/tac/volumes/34/24/34-24.pdf
Abstract
In this work we define a 2-dimensional analogue of extranatural transformation and use these to characterise codescent objects. They will be seen as universal objects amongst pseudo-extranatural transformations in a similar manner in which coends are universal objects amongst extranatural transformations. Some composition lemmas concerning these transformations are introduced and a Fubini theorem for codescent objects is proven using the universal characterisation description.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | 0101 Pure Mathematics; General Mathematics |
| Page Range: | 684-713 |
| SWORD Depositor: | Symplectic Elements |
| Depositing User: | Symplectic Elements |
| Date Deposited: | 10 Sep 2019 11:54 |
| Last Modified: | 18 Mar 2021 03:30 |
| URI: | https://shura.shu.ac.uk/id/eprint/25080 |
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