Timeline for How to "fill in" 3-dimensional Laplacian kernels
Current License: CC BY-SA 2.5
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jul 16, 2010 at 10:12 | comment | added | Nick | +1 for the help, but it's still a little too advanced for me (or not specific enough, depending on how you look at it). Might be better if I had been a math major :) | |
| Jul 16, 2010 at 2:56 | comment | added | thel | A simple way to proceed would be to add five more conditions at random, then you have 125 conditions for 125 variables. If your kernel looks like $a(p,q,r)$ where $p,q,r$ are integers in [$-2,2$], then the first $120$ equations look like $\sum_{p,q,r} a(p,q,r) f_i(p,q,r) = (\Delta f_i)(0)$, where $f_i$ runs over a basis of polynomials of degree $\leq 7$. | |
| Jul 15, 2010 at 23:43 | comment | added | Nick | @josh: but what am i trying to solve? or, in other words, what am i "picking from?" | |
| Jul 15, 2010 at 22:51 | history | answered | thel | CC BY-SA 2.5 |