Timeline for Why study orbifolds? [closed]
Current License: CC BY-SA 4.0
20 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jun 23, 2018 at 11:57 | vote | accept | Praphulla Koushik | ||
| Jun 7, 2018 at 17:38 | history | closed |
Neil Strickland Jan-Christoph Schlage-Puchta Yonatan Harpaz user6976 András Bátkai |
Needs details or clarity | |
| Jun 6, 2018 at 23:45 | answer | added | aglearner | timeline score: 6 | |
| Jun 6, 2018 at 15:44 | comment | added | Praphulla Koushik | @LeeMosher Sir, it was not about retyping all information here. I wanted to say that Wikipedia pag does not say anything about groupoid approach for orbifolds. I thought my question was specific, I am asking how does one explain others what orbifolds are and how they occur naturally and what tools do we use to study thei geometry. | |
| Jun 6, 2018 at 15:41 | history | edited | Praphulla Koushik | CC BY-SA 4.0 |
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| Jun 6, 2018 at 15:39 | comment | added | Praphulla Koushik | @LiviuNicolaescu I did not say whether it is good or not.. it may be good but did not say anything in groupoids approach.. I am aware of that book orbifolds and string topology but could not see that in detail.. I will see as you have said.. | |
| Jun 6, 2018 at 15:36 | comment | added | Praphulla Koushik | @IanAgol thank you for the reference. I will see that :) | |
| Jun 6, 2018 at 15:34 | comment | added | Lee Mosher | But if you can formulate a specific question about groupoids and orbifolds, that might be a good question. | |
| Jun 6, 2018 at 15:33 | comment | added | Lee Mosher | Getting the imprimatur of @IanAgol for that wikipedia page is quite a strong verification, particularly since no-one here is going to retype all the information on that wikipedia page into an answer on this site. | |
| Jun 6, 2018 at 15:30 | comment | added | Liviu Nicolaescu | The reference Orbifolds and Stringy topology indicated in the Wikipedia article discusses the grupoid approcah to orbifolds. | |
| Jun 6, 2018 at 15:23 | comment | added | Liviu Nicolaescu | The article in Wikipedia indicated by Ian Agol is excellent. | |
| Jun 6, 2018 at 15:23 | comment | added | Ian Agol | @PraphullaKoushik : the book by Bridson-Haefliger “Metric spaces of nonpositive curvature” has a discussion of Étale groupoids, which generalize orbifolds. | |
| Jun 6, 2018 at 12:41 | history | edited | Praphulla Koushik | CC BY-SA 4.0 |
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| Jun 6, 2018 at 12:40 | answer | added | Alexander Schmeding | timeline score: 5 | |
| Jun 6, 2018 at 12:39 | comment | added | Praphulla Koushik | @IanAgol After receiving 3 upvotes for your comment and a downvote for my question, (and still counting) I wanted to see if Wikipedia page really gives some idea and i see that there is no mention of the groupoid approach which is what I am looking for.. | |
| Jun 6, 2018 at 12:12 | review | Close votes | |||
| Jun 7, 2018 at 17:38 | |||||
| Jun 6, 2018 at 11:57 | comment | added | Praphulla Koushik | @user75829 Resume says “This is an exposition of the interrelation between orbifolds and crystallographic groups of the plane, focussing especially on patterns that occur in the Alhambra in Granada. ” It does not sound like it is for a general audience. It is in a language that I don’t read. Thanks for the reference though,.. | |
| Jun 6, 2018 at 11:55 | comment | added | Praphulla Koushik | @IanAgol I stopped looking at Wikipedia as it is not reviewed 100%. I think I get fully verified statements here than in Wikipedia. | |
| Jun 6, 2018 at 11:52 | comment | added | Ian Agol | I think that the wikipedia page amply answers this question. en.wikipedia.org/wiki/Orbifold | |
| Jun 6, 2018 at 11:37 | history | asked | Praphulla Koushik | CC BY-SA 4.0 |