Timeline for Find a permutation matrix (using the Matlab's function $symrcm$) of a matrix $A(2:end, 2:end)$
Current License: CC BY-SA 3.0
3 events
| when toggle format | what | by | license | comment | |
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| Nov 15, 2016 at 15:18 | comment | added | Federico Poloni | Oh, ok, you are right, I was thinking to a different setup (finding $u$ in the kernel of $K$, so the indetermination is on a multiplicative coefficient). | |
| Nov 15, 2016 at 15:15 | comment | added | Stefano M | No, I mean $u_1=0$, so that you obtain the solving system simply by deleting first row and column of matrix $K$. This is a common situation say in heat equation with Neumann b.c, where the solution is determined up to an additive constant. | |
| Nov 15, 2016 at 7:49 | history | answered | Stefano M | CC BY-SA 3.0 |