Timeline for How strict can I be in the definition of "2-group"?
Current License: CC BY-SA 2.5
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Feb 17, 2010 at 15:58 | vote | accept | Theo Johnson-Freyd | ||
| Feb 17, 2010 at 3:47 | comment | added | Chris Schommer-Pries | The Baez-Lauda paper is available here: arxiv.org/abs/math/0307200 | |
| Feb 16, 2010 at 21:41 | history | edited | Chris Schommer-Pries | CC BY-SA 2.5 |
added a few more details to clarify.
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| Feb 16, 2010 at 21:28 | comment | added | Chris Schommer-Pries | As an additional remark, it is also possible to choose isomorphisms $i(x) \cdot x \cong 1$ in such a way as to be compatible with the isomorphism $x \cdot i(x) \cong 1$. This takes a little more work, but the argument is explained in the paper by Baez and Lauda on 2-groups. | |
| Feb 16, 2010 at 21:22 | history | answered | Chris Schommer-Pries | CC BY-SA 2.5 |