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Jun
29 |
awarded | Great Answer |
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2 |
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13 |
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27 |
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17 |
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23 |
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24 |
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Jul
2 |
awarded | Curious |
Mar
19 |
asked | Invertibility of Hankel operators? |
Mar
6 |
comment |
An inequality for Fourier transform
It seems to me that the inequality follows from Plancherel inequality and the identity $\widehat{(-\Delta)^{-\alpha}f}=|x|^{-2\alpha}\widehat{f}$. |
Jan
8 |
comment |
Better bound for Hardy-Littlewood maximal function
Testing your estimate on the characteristic of a ball, you see that when $\alpha\rightarrow+\infty$ you get a contradiction. |
Oct
23 |
awarded | Yearling |
Oct
15 |
comment |
Elliptic Harnack inequality for 1D Schrodinger operator?
A Harnack inequality with constants depending on the radius may be found in Aizenman, M.; Simon, B. Brownian motion and Harnack inequality for Schrödinger operators. |
Oct
8 |
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Oct
1 |
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Aug
5 |
comment |
Converse to Chow's theorem in sub-riemannian geometry
Thank you, Dario! |
Jul
18 |
accepted | Converse to Chow's theorem in sub-riemannian geometry |
Jul
17 |
comment |
Heat Equation on $[0,T] \times \mathbb{R}^n$
Duhamel formula could be the tool to prove such a result, by a contraction mapping argument. wiki.math.toronto.edu/DispersiveWiki/index.php/… |