Talk:Gongyl

This name is a synonym to 3-sphere, and so it should redirect there. Tom Ruen 02:07, 31 October 2007 (UTC)


 * No, actually, it's not, by the same token that ball is not a synonym for sphere and disc is not a synonym for circle. It is generally glome-shaped, not perfectly so, and indeed are allowed to be more or less greater in one or more dimensions than others. By your logic, those two should be merged into the articles of their respective symbols as well. LokiClock 22:25, 31 October 2007 (UTC)


 * Where the HECK do you get not perfectly so in what definition. I see now it is 3-sphere plus interior, but why not say 3-ball, then? Tom Ruen 23:26, 31 October 2007 (UTC)
 * It's a normal shape, that's why the not perfectly so. It's to distinguish from a glome in the same way a ball is distinguished from a sphere. To say a soccer ball is a sphere would be incorrect, because it is not perfectly round. And we don't say 3-ball because to someone unfamiliar with the term 3-sphere, they might assume that I speak of a 3-dimensional ball analog, that is to say just a ball, and on top of that it doesn't sound natural. LokiClock 06:36, 4 November 2007 (UTC)

George's website says its a 3-ball: rotatope noun [Garrett Jones] - An n-dimensional shape formed by extensions and rotations. 

Sources?
Can someone source this phrase to something reliably published? Two web sites that seem likely to be one copied from the other don't satisfy WP:RS and I can't find this meaning of this word in Google scholar. —David Eppstein 02:54, 1 November 2007 (UTC)


 * It's ALL George Olshevsky and his cohorts, only online to my knowledge. No better or worse in invention than terms duoprism and duocylinder to my knowledge. Tom Ruen 03:53, 1 November 2007 (UTC)


 * So the proposed merge (which I support, but would equally support deletion of this page without a merge) would consist of adding a single sentence to hypersphere: George Olshevsky calls the 3-ball a "gongyl". And then source that to links to one of these glossaries. Right? —David Eppstein 04:14, 1 November 2007 (UTC)


 * Yes for me. Tom Ruen 04:25, 1 November 2007 (UTC)
 * That works. I'd prefer an n-ball section in it, since it's a slightly different subject, and so the sentence isn't just floating around somewhere in the article like a poorly relocated trivium, and at the very least a preservation of the IPA text to aid pronunciation. LokiClock 06:29, 4 November 2007 (UTC) EDIT: Nevermind, adding gongyl information to n-sphere article, as there is already an n-ball section with 3-ball note.


 * Yucky offset indexing notation, forget easily Hypersphere - a 3-ball is a 2-sphere plus interior, 4-ball is a 3-sphere plus interior. Language clarity is hopeless to me even without strange names. Tom Ruen 07:39, 4 November 2007 (UTC)