Timeline for Name for series $\sum f_n x^n / (n! (n+k)!)$
Current License: CC BY-SA 3.0
8 events
| when toggle format | what | by | license | comment | |
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| Oct 18, 2014 at 10:03 | vote | accept | Y. Pei | ||
| Oct 13, 2014 at 13:55 | answer | added | Ira Gessel | timeline score: 3 | |
| Oct 13, 2014 at 13:29 | history | edited | Ricardo Andrade |
edited tags
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| Oct 13, 2014 at 13:24 | history | edited | Ricardo Andrade | CC BY-SA 3.0 |
edited tags; added top-level tag
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| Oct 13, 2014 at 11:45 | comment | added | Pietro Majer | I guess the theory of such series relies on the bivariate egf $$\sum_{n\ge0, m\ge0} f_n [m\ge n] \frac{x^n}{n!}\frac{y^m}{m!}.$$ (here $[m\ge n]$ is $1$ or $0$ according whether $m\ge n$ or not). | |
| Oct 13, 2014 at 11:05 | comment | added | Y. Pei | @JoonasIlmavirta Thanks for your comment. Because it might not be "my" series. I am quite certain that examples of this series have been studied before, maybe even some general theories exist. So if I know the name then I can search for related literature. | |
| Oct 13, 2014 at 11:01 | comment | added | Joonas Ilmavirta | May I ask why you are interested in giving your series a name? I would be tempted to call it the generating function of the sequence $(f_n/(n+k)!)$. | |
| Oct 13, 2014 at 10:55 | history | asked | Y. Pei | CC BY-SA 3.0 |