Timeline for How can I prove that the negative biased triangular kernel is positive semidefinite
Current License: CC BY-SA 3.0
9 events
| when toggle format | what | by | license | comment | |
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| Aug 25, 2014 at 18:39 | vote | accept | Sungjoon Choi Samuel | ||
| Aug 25, 2014 at 18:21 | vote | accept | Sungjoon Choi Samuel | ||
| Aug 25, 2014 at 18:39 | |||||
| Aug 25, 2014 at 17:46 | answer | added | Robert Israel | timeline score: 1 | |
| Aug 25, 2014 at 15:10 | comment | added | Christian Remling | So doesn't that prove that $k$ is not positive definite (since Bochner's theorem gives a characterization)? | |
| Aug 25, 2014 at 14:46 | comment | added | Sungjoon Choi Samuel | I checked the Fourier transform and the result wasn't non-negative.. | |
| Aug 25, 2014 at 14:39 | comment | added | Christian Remling | Can't you just compute the Fourier transform of $1-2|t|$ (on $[-1,1]$) and check if it's non-negative. | |
| Aug 25, 2014 at 7:25 | review | First posts | |||
| Aug 25, 2014 at 8:03 | |||||
| Aug 25, 2014 at 7:22 | history | edited | Sungjoon Choi Samuel |
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| Aug 25, 2014 at 7:16 | history | asked | Sungjoon Choi Samuel | CC BY-SA 3.0 |