Timeline for Why does bosonic string theory require 26 spacetime dimensions?
Current License: CC BY-SA 3.0
27 events
| when toggle format | what | by | license | comment | |
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| Apr 13, 2017 at 12:58 | history | edited | CommunityBot |
replaced http://mathoverflow.net/ with https://mathoverflow.net/
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| Sep 17, 2016 at 21:00 | answer | added | მამუკა ჯიბლაძე | timeline score: 1 | |
| Sep 17, 2016 at 19:45 | answer | added | user25309 | timeline score: 4 | |
| Feb 8, 2014 at 20:12 | comment | added | user21349 | all modern physical doctrines suggest that out world is NOT 4-dimensional, but higher Not all modern physical theories, just string theory -- which is probably wrong. | |
| Feb 8, 2014 at 16:09 | answer | added | José Figueroa-O'Farrill | timeline score: 10 | |
| Aug 25, 2013 at 9:40 | answer | added | Abhimanyu Pallavi Sudhir | timeline score: 5 | |
| Sep 1, 2012 at 3:59 | answer | added | Kevin Wray | timeline score: 7 | |
| Aug 8, 2012 at 5:59 | vote | accept | Alexander Chervov | ||
| Jun 15, 2012 at 12:28 | answer | added | user1504 | timeline score: 7 | |
| Jun 15, 2012 at 3:58 | history | edited | S. Carnahan♦ | CC BY-SA 3.0 |
Title
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| Jun 15, 2012 at 1:44 | answer | added | Pavel Safronov | timeline score: 41 | |
| Jun 15, 2012 at 1:32 | answer | added | Tom Dickens | timeline score: 9 | |
| Jun 15, 2012 at 1:11 | comment | added | Noam D. Elkies | @Jeff Burdges: and also the number of infinite families of finite groups. (Then there's the Tits group, which is not quite of linear type but is not usually counted among the sporadics either...) | |
| Jun 14, 2012 at 22:01 | comment | added | Gunnar Þór Magnússon | @Alexander: Then ask "Why 26 dimensions?". You'll avoid the character limit, get people to make the connection with string theory more quickly, and escape the decade long internet battle-hardened spam detectors of their souls. | |
| Jun 14, 2012 at 21:55 | comment | added | Jeff Burdges | Isn't the title also exceedingly uninformative? It should be obvious to mathematicians that a title "Why 26?" must refer to the number of sporadic finite simple groups. I suppose chemists might start wondering about Iron's properties or something. | |
| Jun 14, 2012 at 21:53 | comment | added | André Henriques | C'mon guys. It's a good question, with an ok title. Stop beeing arses! | |
| Jun 14, 2012 at 21:36 | comment | added | Federico Poloni | @Alexander Chervov: then how come "W h y 2 6 ?", which is less than 15 chars, is allowed? | |
| Jun 14, 2012 at 21:35 | answer | added | Chris Gerig | timeline score: 15 | |
| Jun 14, 2012 at 21:30 | comment | added | Alexander Chervov | @Ben please feel free to edit | |
| Jun 14, 2012 at 21:27 | comment | added | Ben Webster♦ | Alexander- Some would have taken that as a sign that a title with one word and one number wasn't actually a good choice (which is expanded on in the "how to ask"). | |
| Jun 14, 2012 at 21:24 | history | edited | Alexander Chervov | CC BY-SA 3.0 |
added 135 characters in body
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| Jun 14, 2012 at 21:24 | comment | added | Minhyong Kim | One of the clearest explanation I've seen for a mathematical readership is in this old Bourbaki seminar of Bost: numdam.org/numdam-bin/fitem?id=SB_1986-1987__29__113_0 | |
| Jun 14, 2012 at 21:22 | comment | added | Gerald Edgar | In the old days, in some countries, s p a c i n g was a substitute for nonexistent italics. | |
| Jun 14, 2012 at 21:18 | comment | added | Alexander Chervov | @Asaf MO does not allow title less than 15 chars. | |
| Jun 14, 2012 at 20:32 | comment | added | Asaf Karagila♦ | T h e $\ $ s p a c i n g $\ $ i s $\ $ a n n o y i n g . . . | |
| Jun 14, 2012 at 20:26 | comment | added | Jon | The reason behind 26 dimensions for bosonic string is that quantization destroy conformal (Weyl) symmetry being this a two-dimensional theory. In order to have a sensible quantum theory one needs to fix dimension to 26. Adding fermions and so, supersymmetry, the situation can alleviated reducing dimensions to 10. See amazon.com/String-Cambridge-Monographs-Mathematical-Physics/dp/… for physicists or amazon.com/Quantum-Fields-Strings-Course-Mathematicians/dp/… for mathematicians. | |
| Jun 14, 2012 at 19:59 | history | asked | Alexander Chervov | CC BY-SA 3.0 |