Timeline for cube + cube + cube = cube
Current License: CC BY-SA 3.0
13 events
| when toggle format | what | by | license | comment | |
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| S Nov 28, 2017 at 0:12 | history | suggested | jeq | CC BY-SA 3.0 |
Copied images to imgur.com, as they were not being displayed because of new https rule. Added links to original image sources.
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| Nov 27, 2017 at 23:42 | review | Suggested edits | |||
| S Nov 28, 2017 at 0:12 | |||||
| May 7, 2013 at 6:13 | comment | added | Noam D. Elkies | Yes, JHI, as I wrote correctly in my actual answer; here I must have been distracted by the alphabetical progression $-$ sorry. Unlike answers, comments cannot be edited here except by deleting the original comment and entering the corrected text for a new comment... | |
| May 7, 2013 at 6:02 | comment | added | Gerry Myerson | Not that this helps much, but it appears to be JHI, not GHI. | |
| May 6, 2013 at 23:44 | comment | added | Noam D. Elkies | Thanks too for accept ing my new answer. This curiously gives GHI the rare, perhaps unique, distinction of earning a gold Populist badge for his first and only MO answer! Populist or not, GHI's answer is necessary to show that the 8-piece dissection is minimal, and greatly helped focus my search using the key condition that each piece much include a corner of the $6 \times 6 \times 6$ cube. It also has the virtue of applying to all $(a,b,c;d)$, not just $(3,4,5;6)$. $$ $$ While I'm at it: who is "GHI"? When citing his contribution I'd like to credit a real person rather than a pseudonym. | |
| May 6, 2013 at 20:36 | history | edited | Noam D. Elkies | CC BY-SA 3.0 |
Fix/improve some sentences; give lower bound of 9 on taxicab dissection
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| May 6, 2013 at 20:30 | comment | added | Noam D. Elkies | Thanks! The 2-D illustration was possible because it's how I was able to find the dissection in the first place $-$ fortunately no coordinate permutation was needed except for boxes. It would have been much harder both to find and to illustrate the dissection if some of the pieces were as complicated as in the 9-piece dissection that you mentioned and F.Brunault posted. | |
| May 6, 2013 at 5:25 | comment | added | Denis Serre | @Joel. Yes, I can! | |
| May 6, 2013 at 5:24 | vote | accept | Denis Serre | ||
| May 6, 2013 at 4:21 | comment | added | JRN | @DenisSerre, I think you can change your accepted answer. Just click the check mark for Noam's answer. | |
| May 5, 2013 at 20:07 | comment | added | Denis Serre | Actually, I should like to accept your answer. Unfortunately, I accepted already JHI's. | |
| May 5, 2013 at 20:06 | comment | added | Denis Serre | Beautiful! I'm especially impressed that you found a way to explain it in a convincing way by using 2-D figures. | |
| May 5, 2013 at 18:39 | history | answered | Noam D. Elkies | CC BY-SA 3.0 |