Timeline for List of analytically known eigensystems?
Current License: CC BY-SA 4.0
14 events
| when toggle format | what | by | license | comment | |
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| May 4, 2018 at 19:05 | comment | added | Todd Trimble | Made Community Wiki on advice from an expert (that there is no one definitive answer, but a list of possible answers). | |
| May 4, 2018 at 19:04 | history | made wiki | Post Made Community Wiki by Todd Trimble | ||
| May 4, 2018 at 15:20 | history | reopened |
Carlo Beenakker David White Alexey Ustinov Stefan Kohl♦ Yemon Choi |
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| May 4, 2018 at 10:40 | comment | added | lcv | Plus a long list of solvable many body quantum systems. | |
| May 4, 2018 at 10:21 | comment | added | Suvrit | @FedericoPoloni there can be really several more answers, including matrices based on sin-cos, special bidiagonal matrices, certain anti-bi-diagonal matrices, possibly some matrices reported in the journal on special matrices, etc. etc., | |
| May 4, 2018 at 7:26 | review | Reopen votes | |||
| May 4, 2018 at 15:20 | |||||
| May 4, 2018 at 7:10 | history | edited | Slenderman | CC BY-SA 4.0 |
Tried to limit my scope, to probably no avail
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| May 3, 2018 at 15:12 | history | closed |
Piotr Hajlasz András Bátkai Stefan Kohl♦ Chris Godsil Michael Renardy |
Needs more focus | |
| May 3, 2018 at 11:40 | comment | added | Federico Poloni | @AndrásBátkai Are there really that many possible answers? I don't think it is so hopeless. On the top of my mind I can only come up with companion matrices (possibly in various bases), matrix algebras (including circulant matrices), identity-plus-low-rank matrices, Kronecker products. | |
| May 3, 2018 at 9:18 | comment | added | Federico Poloni | "tridiagonal matrices have elementary expressions for its eigenvalues and eigenvectors" Uh? Every symmetric matrix is similar to a tridiagonal matrix (and the similarity can be explicitly constructed), so that sounds very strange (unless we have two very different concepts of "known analytic eigendecomposition" in mind). | |
| May 3, 2018 at 5:48 | comment | added | András Bátkai | What you ask is a really important problem, but I am not sure in its form suitable here. There are so many possible answers... Please, ask a more focused question. | |
| May 3, 2018 at 5:12 | review | Close votes | |||
| May 3, 2018 at 15:14 | |||||
| May 3, 2018 at 3:40 | review | First posts | |||
| May 3, 2018 at 4:43 | |||||
| May 3, 2018 at 3:40 | history | asked | Slenderman | CC BY-SA 4.0 |