Timeline for Condition of tri-diagonal matrix A such that UAU^t=A for all orthogonal matrix U [closed]
Current License: CC BY-SA 4.0
8 events
| when toggle format | what | by | license | comment | |
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| May 10, 2019 at 2:09 | comment | added | rae hyun kim | sorry for late comment. I wanna know the existence of that tridiagonal matrix A. I need to do SVD on matrix $ \sum {B \otimes \cdots A \cdots \otimes B}$ where A B are tridiagonal matrices. I hope that above condition holds, but it seems not true. | |
| May 9, 2019 at 2:00 | history | closed |
user44191 Jan-Christoph Schlage-Puchta Sean Lawton Chris Godsil LSpice |
Needs details or clarity | |
| May 9, 2019 at 2:00 | comment | added | LSpice | Are you calling the given matrix and its tri-diagonalisation both $A$? | |
| May 6, 2019 at 19:06 | answer | added | Christopher Hillenbrand | timeline score: 1 | |
| May 6, 2019 at 8:20 | comment | added | LeechLattice | I don't get your point. Would you please elaborate the question more? | |
| May 6, 2019 at 7:20 | review | Close votes | |||
| May 9, 2019 at 2:00 | |||||
| May 6, 2019 at 6:15 | review | First posts | |||
| May 6, 2019 at 7:02 | |||||
| May 6, 2019 at 6:11 | history | asked | rae hyun kim | CC BY-SA 4.0 |