Timeline for Finding solutions to $f'(x) = f(x + k)$
Current License: CC BY-SA 2.5
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Sep 24, 2010 at 14:38 | comment | added | Choli | Thanks for the name ("delay differencial" or "differential delay"). I didn't know it (i had searched for it before if I knew the name :P) | |
| Sep 24, 2010 at 14:21 | comment | added | Denis Serre | OK, so let me reverse everithing : forward and backward instead of backward and forward, and so on... Molière's play Le bourgeois gentilhomme' gives a funny list of permutation of a declaration of love. *Belle marquise, d'amour mourrir vos beaux yeux me font, D'amour mourrir, belle marquise, me font vos beux yeux, etc ... | |
| Sep 24, 2010 at 14:09 | comment | added | J. M. isn't a mathematician | I mean your ordering of the words is backwards from what I usually see ("delay differential" instead of "differential delay"). ;) | |
| Sep 24, 2010 at 13:24 | comment | added | Denis Serre | When there is only one shift (here, $k$), bacward and forward are only a matter of orientation of the real line, and thus are equivalent. The troubles come when there are two shifts $h$ and $k$ with opposite signs. There are very few works in this case ; I remember that S. Benzoni-Gavage had a paper on it. | |
| Sep 24, 2010 at 13:08 | comment | added | J. M. isn't a mathematician | Tiny nitpick: it's usually backwards (delay differential equation). | |
| Sep 24, 2010 at 13:04 | history | answered | Denis Serre | CC BY-SA 2.5 |