Timeline for How do we show this matrix has full rank?
Current License: CC BY-SA 3.0
22 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jan 6, 2015 at 2:52 | answer | added | math110 | timeline score: 2 | |
| Jan 4, 2015 at 15:43 | vote | accept | math110 | ||
| Jan 3, 2015 at 22:32 | history | rollback | Christian Remling |
Rollback to Revision 9
|
|
| Jan 3, 2015 at 22:32 | history | rollback | Christian Remling |
Rollback to Revision 1
|
|
| Jan 3, 2015 at 5:22 | comment | added | Christian Remling | I believe the calculation for $JPJ^t$ (and thus the whole identity) is not correct. | |
| Jan 2, 2015 at 5:00 | answer | added | Włodzimierz Holsztyński | timeline score: 0 | |
| Jan 2, 2015 at 2:46 | history | edited | math110 | CC BY-SA 3.0 |
added 82 characters in body
|
| Jan 1, 2015 at 21:20 | comment | added | Wolfgang |
You might want to write the tridiagonal matrix more suggestively using \ddots: $$JPJ^T=J^TQJ=\begin{bmatrix} 2&-2&0&\cdots&0\\ -2&4&-3&\ddots\qquad&0\\ 0&-3 &6&\ddots\qquad&0\\ \vdots&&\ddots\qquad&\ddots\ \qquad&\vdots\\ 0&\cdots&-(n-2)&2(n-1)&-(n-1)\\ 0&\cdots&0&-(n-1)&2n \end{bmatrix}$$
|
|
| Jan 1, 2015 at 19:14 | answer | added | Christian Remling | timeline score: 16 | |
| Jan 1, 2015 at 2:51 | history | edited | math110 | CC BY-SA 3.0 |
added 3 characters in body
|
| Dec 31, 2014 at 3:51 | history | edited | math110 | CC BY-SA 3.0 |
edited title
|
| Dec 31, 2014 at 2:27 | history | edited | math110 | CC BY-SA 3.0 |
added 304 characters in body
|
| Dec 31, 2014 at 0:17 | history | reopened |
Vladimir Dotsenko Daniel Litt Nate Eldredge Francois Ziegler Bjørn Kjos-Hanssen |
||
| S Dec 30, 2014 at 23:24 | history | suggested | Tadashi | CC BY-SA 3.0 |
Improved the English writing of the question
|
| Dec 30, 2014 at 23:12 | review | Suggested edits | |||
| S Dec 30, 2014 at 23:24 | |||||
| Dec 30, 2014 at 22:22 | review | Reopen votes | |||
| Dec 30, 2014 at 23:53 | |||||
| Dec 30, 2014 at 18:54 | history | closed |
Yemon Choi Dima Pasechnik Per Alexandersson Stefan Kohl♦ Will Jagy |
Not suitable for this site | |
| Dec 30, 2014 at 16:56 | history | edited | math110 | CC BY-SA 3.0 |
added 444 characters in body
|
| Dec 30, 2014 at 16:24 | history | edited | math110 | CC BY-SA 3.0 |
added 47 characters in body
|
| Dec 30, 2014 at 16:21 | review | Close votes | |||
| Dec 30, 2014 at 18:57 | |||||
| Dec 30, 2014 at 16:19 | history | edited | math110 | CC BY-SA 3.0 |
added 47 characters in body
|
| Dec 30, 2014 at 16:00 | history | asked | math110 | CC BY-SA 3.0 |