Timeline for $\ell^p$ version of singular values
Current License: CC BY-SA 4.0
14 events
| when toggle format | what | by | license | comment | |
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| Apr 7, 2022 at 15:03 | history | edited | Dirk | CC BY-SA 4.0 |
deleted 3 characters in body
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| Apr 14, 2011 at 17:13 | answer | added | Anatoly Kochubei | timeline score: 1 | |
| Dec 22, 2010 at 23:21 | answer | added | Ari | timeline score: 0 | |
| Dec 22, 2010 at 21:58 | answer | added | Suvrit | timeline score: 0 | |
| Dec 22, 2010 at 21:30 | comment | added | Denis Serre | @Piero. The case $n=2$ is not illuminating, because then either $k=1$ or $k=n$. Therefore we do have $s_{k,p}(M)=s_{k,p'}(M^T)$, but for a reason that does not extend to other situations (a subspace $G$ exists). | |
| Dec 22, 2010 at 20:18 | comment | added | Piero D'Ancona | And you'd have a building of ENS in Hawaii. Denis, did you play with trivial examples like 2x2 matrices and p=1, infinity? I did not check carefully, but it seems that you can already exclude equality | |
| Dec 22, 2010 at 20:03 | comment | added | Denis Serre | No, he was in Austria. An interesting tale, because he switched to pure maths (algebraic topology), to be sure that his science could not be used by the german army. Sure, he would have prefered to be in Maui. But if he had been, this would have meant that Japan and Germany had won the war. | |
| Dec 22, 2010 at 19:33 | comment | added | Bill Johnson | Leray was imprisoned on Maui, Denis?!?! :) | |
| Dec 22, 2010 at 19:24 | answer | added | Helge | timeline score: -5 | |
| Dec 22, 2010 at 18:44 | comment | added | Denis Serre | @Bill. Thank you, I'll have a look. Your last sentence looks that one used by Jean Leray in his papers written during the time he was a war prisonner. | |
| Dec 22, 2010 at 18:41 | comment | added | Bill Johnson | Look at books on Banach space theory that have information on s-numbers (Tomczak-Jaegermann, Pietsch, Diestel-Jarchow-Tonge, and HERMANN KONIG Eigenvalue distribution of compact operators). Sorry I can't give more information from where I am now. | |
| Dec 22, 2010 at 15:26 | comment | added | Andrey Rekalo | Edit: LaTeX. | |
| Dec 22, 2010 at 15:24 | history | edited | Andrey Rekalo | CC BY-SA 2.5 |
LaTeX; added 12 characters in body
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| Dec 22, 2010 at 14:12 | history | asked | Denis Serre | CC BY-SA 2.5 |