Timeline for Is there a 7-regular graph on 50 vertices with girth 5? What about 57-regular on 3250 vertices?
Current License: CC BY-SA 2.5
9 events
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| Jan 30, 2012 at 1:39 | comment | added | Noam D. Elkies | See math.harvard.edu/~elkies/Misc/hsgraph.pdf for an outline of an elementary proof of the uniqueness of the Hoffman-Singleton graph. | |
| Nov 7, 2010 at 4:47 | comment | added | sleepless in beantown | @Gerry-Myerson, or perhaps talk about the Pentagram map near Halloween? math.usf.edu/research/colloquia = October 29 2010 Geometry, algebra, and dynamics of the pentagram map, by speaker Sergei Tabachnikov, Penn State... | |
| Oct 28, 2010 at 18:26 | comment | added | Allen Knutson | Then spectral sequences should come at Christmas (for the three that visit Ebenezer Scrooge). | |
| Oct 28, 2010 at 5:25 | comment | added | Gerry Myerson | Shouldn't we arrange our lectures so we teach spectral techniques on Halloween? | |
| Oct 28, 2010 at 2:14 | history | edited | Hsien-Chih Chang 張顯之 | CC BY-SA 2.5 |
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| Oct 28, 2010 at 2:10 | comment | added | Gerry Myerson | See also C D Godsil, Problems in algebraic combinatorics, Electron J Combin 2 (1995) Feature 1, MR 96b:05051. | |
| Oct 28, 2010 at 2:08 | vote | accept | David E Speyer | ||
| Oct 28, 2010 at 2:07 | history | edited | Hsien-Chih Chang 張顯之 | CC BY-SA 2.5 |
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| Oct 28, 2010 at 2:02 | history | answered | Hsien-Chih Chang 張顯之 | CC BY-SA 2.5 |