Search Results
| Search type | Search syntax |
|---|---|
| Tags | [tag] |
| Exact | "words here" |
| Author |
user:1234 user:me (yours) |
| Score |
score:3 (3+) score:0 (none) |
| Answers |
answers:3 (3+) answers:0 (none) isaccepted:yes hasaccepted:no inquestion:1234 |
| Views | views:250 |
| Code | code:"if (foo != bar)" |
| Sections |
title:apples body:"apples oranges" |
| URL | url:"*.example.com" |
| Saves | in:saves |
| Status |
closed:yes duplicate:no migrated:no wiki:no |
| Types |
is:question is:answer |
| Exclude |
-[tag] -apples |
| For more details on advanced search visit our help page | |
Results tagged with reference-request
Search options not deleted
user 153260
This tag is used if a reference is needed in a paper or textbook on a specific result.
4
votes
1
answer
432
views
Reference or proof of a theorem of L. Fejér on summability of Fourier series
In the article "Ensembles exceptionnels" by A. Beurling, the author cites the following theorem of Fejér:
Suppose that a $2\pi$ periodic function $ f $, Lebesgue integrable in $(0,2\pi)$ satisfies the …
- 6,486
5
votes
Accepted
Is Toeplitz operator on the Bergman space bounded iff its symbol is bounded?
It is not neccesary in general that $\varphi \in L^\infty(\mathbb{D})$, but it is necessary and sufficient
that in a certain sense $\varphi$ must be bounded ``on average in the hyperbolic sense''. The …
- 151
4
votes
$L^p$ domination of mixed partial derivatives of the 3rd order by the unmixed ones?
I think similar questions always translate in the $L^p$ boundedness of a Fourier multiplier. In this case you want a Fourier multiplier which "exchanges the operator $D_1D_2D_3$ with the operator $D_1 …
3
votes
$L^p$ domination of mixed partial derivatives by the unmixed ones?
It should be true for $p>1$. For a function $\varphi$ in the Schwartz class it holds that \begin{equation}
D_1D_2 \varphi(x) = -R_1 R_2 \Delta \varphi(x),
\end{equation}
where $R_1, R_2$ are the Riesz …