Timeline for How to restore the original formula from a binomial-like expansion?
Current License: CC BY-SA 3.0
15 events
when toggle format | what | by | license | comment | |
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Oct 28, 2013 at 21:01 | comment | added | Nathan | This vaguely reminds me of the umbral calculus. | |
S Oct 28, 2013 at 14:56 | history | suggested | Michaël Le Barbier | CC BY-SA 3.0 |
Math notation
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Oct 28, 2013 at 14:32 | review | Suggested edits | |||
S Oct 28, 2013 at 14:56 | |||||
Oct 28, 2013 at 14:31 | answer | added | Michaël Le Barbier | timeline score: 2 | |
Nov 2, 2010 at 13:30 | comment | added | JBL | As usual, you have not provided any motivation at all. I've given an answer in terms of trees and/or Stirling numbers below, but it's impossible to know if the problem you started with originally came from this area (in which case my answer just brings you back to where you started, except that perhaps the references in the OEIS will be new). | |
Nov 2, 2010 at 13:26 | answer | added | JBL | timeline score: 2 | |
Nov 2, 2010 at 8:57 | history | edited | Robin Chapman |
spurious tag removed
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Nov 2, 2010 at 8:16 | history | edited | Anixx | CC BY-SA 2.5 |
added 115 characters in body
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Nov 2, 2010 at 8:15 | comment | added | Anixx | @ sleepless in beantown, thank you for the advice. Here is the topic (though in Russian): dxdy.ru/topic36602.html | |
Nov 2, 2010 at 7:49 | comment | added | sleepless in beantown | @Annix, that the generating function approach led nowhere would have been an informative point to have included in your original question posting, particularly if you had tried it and failed... | |
Nov 2, 2010 at 7:43 | comment | added | Anixx | @ Robin Chapman I asked this question some time ago on another mathematical forum asking to find a common form for A(n,x). One participant of that forum suggested to use the generating function. But it turned out then that it does not lead to anything useful. | |
Nov 2, 2010 at 7:22 | comment | added | Robin Chapman | Have you looked at the exponential generating function of $A(j,k)$? | |
Nov 2, 2010 at 6:36 | comment | added | Anixx | @Ryan Budney probably, this en.wikipedia.org/wiki/… I just wonder in what circumstances such expansions occur and how one can find the * operation from the given binomial expansion. If it does not relate to abstract algebra, the tag can be removed. | |
Nov 2, 2010 at 6:23 | comment | added | Ryan Budney | What does your question have to do with abstract algebra? | |
Nov 2, 2010 at 4:45 | history | asked | Anixx | CC BY-SA 2.5 |