Timeline for History of the four-colour problem
Current License: CC BY-SA 3.0
19 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jan 22, 2012 at 9:52 | answer | added | Norman Biggs | timeline score: 10 | |
| Jan 22, 2012 at 4:41 | vote | accept | Brendan McKay | ||
| Jan 21, 2012 at 21:14 | answer | added | Robin Wilson | timeline score: 17 | |
| Jan 16, 2012 at 1:37 | history | edited | Brendan McKay | CC BY-SA 3.0 |
add url
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| Jan 14, 2012 at 6:06 | history | edited | Brendan McKay | CC BY-SA 3.0 |
sight correction. no letters are known.
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| Jan 13, 2012 at 15:14 | answer | added | Matt Brin | timeline score: 8 | |
| Jan 13, 2012 at 14:08 | comment | added | Brendan McKay | Ok, 2-pages. But I wrote it and sent it to a journal. Wish me luck ;). | |
| Jan 13, 2012 at 13:43 | history | edited | Brendan McKay | CC BY-SA 3.0 |
comma!
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| Jan 13, 2012 at 5:53 | comment | added | Brendan McKay | I plan to write a 1-page paper about this, quite soon. | |
| Jan 13, 2012 at 5:52 | history | edited | Brendan McKay | CC BY-SA 3.0 |
spelling
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| Jan 13, 2012 at 2:06 | comment | added | David Eppstein | Thanks for this interesting find. And thanks also to Igor for pointing out that it was missing from Wikipedia — I've updated the Wikipedia article. But you know, when you discover a curious omission from Wikipedia, it would probably work more reliably to edit the Wikipedia article yourself so that it is no longer an omission, or at least to leave a pointer to it on the article's talk page, rather than hoping that some other Wikipedia editor happens to randomly pass by and notice your posting. | |
| Jan 12, 2012 at 15:59 | comment | added | paul Monsky | Since De Morgan (according to Wilson) says that Francis Guthrie brought the problem to De Morgan's attention in 1852, and Galton only seems to have been involved from the 1870's on, it seems a safe bet that F.G is Francis Guthrie. | |
| Jan 12, 2012 at 15:44 | comment | added | Brendan McKay | Thanks, now it is written like on the magazine of the time. | |
| Jan 12, 2012 at 15:39 | history | edited | Brendan McKay | CC BY-SA 3.0 |
mark-up
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| Jan 12, 2012 at 13:05 | history | edited | Brendan McKay | CC BY-SA 3.0 |
italics not working?
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| Jan 12, 2012 at 12:36 | comment | added | Brendan McKay | I found that the attribution of the 1860 article to de Morgan is confirmed from the Athaeneum archives. I don't see the identity of "F.G." indicated there. | |
| Jan 12, 2012 at 12:25 | comment | added | Brendan McKay | Cayley refers to an earlier mention "somewhere" by de Morgan, which is identified as a reference to the 1860 publication (J. Wilson, 'New light on the origin of the four-colour conjecture', Hist. Math.,3, 329 (1976). de Morgan doesn't mention it has having been published earlier. | |
| Jan 12, 2012 at 12:11 | comment | added | Igor Rivin | The wikipedia page on the four color theorem: en.wikipedia.org/wiki/Four_color_theorem seems to date the conjecture to 1852, but gives the first published reference MUCH later (Cayley, 1879). It is curious that Wikipedia omits both the Athaeneum reference... | |
| Jan 12, 2012 at 11:38 | history | asked | Brendan McKay | CC BY-SA 3.0 |