Timeline for Fourier transform of a translation invariant operator on $l^2(\mathbb{Z}) \otimes l^2(\mathbb{Z})$
Current License: CC BY-SA 4.0
8 events
| when toggle format | what | by | license | comment | |
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| Jun 22, 2022 at 18:30 | comment | added | Frederik Ravn Klausen | Thanks, I used the trick here: arxiv.org/abs/2206.09879 | |
| Mar 21, 2020 at 9:48 | vote | accept | Frederik Ravn Klausen | ||
| Mar 19, 2020 at 20:42 | comment | added | Nik Weaver | @YemonChoi Not exactly, I don't think. The condition isn't that we can't move $e_{ij}$ more than $R$ units away from where it starts, it's that the operator kills $e_{ij}$ if $|i-j| >R$. | |
| Mar 19, 2020 at 19:19 | comment | added | Yemon Choi | I haven't worked through the calculation properly but does the band-limiting condition mean you land in the uniform Roe algebra of ${\bf Z}$ with coefficients in $L^\infty({\bf T})$? | |
| Mar 19, 2020 at 17:32 | history | edited | Nik Weaver | CC BY-SA 4.0 |
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| Mar 19, 2020 at 14:25 | history | edited | Nik Weaver | CC BY-SA 4.0 |
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| Mar 19, 2020 at 12:59 | history | edited | Nik Weaver | CC BY-SA 4.0 |
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| Mar 19, 2020 at 12:53 | history | answered | Nik Weaver | CC BY-SA 4.0 |