Timeline for Cotlar-Stein's Lemma and the Dirichlet kernel
Current License: CC BY-SA 3.0
5 events
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| Apr 13, 2017 at 12:58 | history | edited | CommunityBot |
replaced http://mathoverflow.net/ with https://mathoverflow.net/
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| Nov 21, 2016 at 19:29 | comment | added | Mr.right | @ChristianRemling Sure. But I am not asking for a different (or easier) proof for it. I want to know how to apply the Cotlar-Stein Lemma to this problem directly. | |
| Nov 21, 2016 at 17:20 | comment | added | Christian Remling | In both cases, it's much easier to work with the Fourier transforms; this makes these claims immediately obvious. In fact, this way you see that $H$ is unitary and $\|D_{\lambda}\|_{L^2\to L^2}$ is independent of $\lambda$. | |
| Nov 21, 2016 at 16:19 | history | edited | Mr.right | CC BY-SA 3.0 |
added 2 characters in body
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| Nov 21, 2016 at 16:12 | history | asked | Mr.right | CC BY-SA 3.0 |