Talk:Rotation system
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[edit]need a definition for 2-cell. idk what it means and i can't find a wiki article :( --driggers 10:42, 26 November 2006 (UTC)
- added a link to graph embedding (which is a short stub I will polish when I will have some time) pom 19:34, 27 November 2006 (UTC)
An illustration would be helpful. — Preceding unsigned comment added by 158.129.140.71 (talk) 11:48, 30 December 2014 (UTC)
In order to clarify the action of the group $\sigma \theta$, in the section "Recovering the embedding from the rotation system", should it not be specified in the section "Formal definition", whether the actions of $\sigma$ and $\theta$ on $B$ are left- or right- actions ? — Preceding unsigned comment added by Jumpers for goalposts, enduring image (talk • contribs) 23:23, 1 October 2021 (UTC)
Actually, I think I'm wrong, in that I believe that, provided the left-ness or right-ness is consistent throughout the article, the same (or an equivalent (whatever is the correct notion of equivalence here) embedded graph results. Therefore assuming, reasonably that the choice is indeed consistent, then there is no need to mention it. — Preceding unsigned comment added by Jumpers for goalposts, enduring image (talk • contribs) 01:39, 2 October 2021 (UTC)