User an_ordinary_mathematician

8 votes

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Maximal Hausdorff dimension of the set on which derivatives do not agree

answered May 20 at 12:38

8 votes

A curious norm related to the L¹ norm

answered Oct 15 at 8:03

7 votes

Is $\frac{|t|}{e^{a|t|}-e^{-b|t|}}$ the Fourier transform of a positive function

answered Mar 27 at 8:52

5 votes

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Is Toeplitz operator on the Bergman space bounded iff its symbol is bounded?

answered Apr 10 at 8:22

5 votes

Does this integral condition characterize $L^\infty$?

answered Oct 30, 2023 at 17:14

5 votes

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Macroscopic sets - a notion of largeness for Lebesgue null sets

answered Nov 28, 2023 at 7:29

4 votes

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Are these two norms on localized versions of $L^p_q$ equivalent?

answered Feb 26 at 14:11

4 votes

$L^p$ domination of mixed partial derivatives of the 3rd order by the unmixed ones?

answered Feb 27 at 19:01

4 votes

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Proof of a discrete isoperimetric inequality

answered Apr 5, 2020 at 22:30

4 votes

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Is the spectrum of a "self adjoint" operator real on $\ell^p$?

answered Apr 6, 2020 at 13:18

4 votes

Integral means vs infinite convex combinations

answered Mar 24 at 18:05

4 votes

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Extracting a subsequence Cesàro converging to the limsup of the Cesàro sums

answered May 4 at 11:52

4 votes

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A question on Bloch functions

answered Sep 11 at 13:34

3 votes

Examples of theorems where numerical bounds on $\pi$ played a role

answered May 18 at 14:59

3 votes

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Example of an $H^1$ function on the bidisk that is not a product of two $H^2$ functions

answered May 21 at 11:09

3 votes

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Leibniz rule for square root of Laplacian

answered Jun 15, 2023 at 13:39

3 votes

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Is the local maximal function bounded from $W^{1, 1}$ to $L^1$?

answered Oct 21, 2023 at 14:24

3 votes

$L^p$ domination of mixed partial derivatives by the unmixed ones?

answered Feb 26 at 20:10

2 votes

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weakly separated sequences in RKHS are separated by Gleason metric

answered Nov 18, 2023 at 1:22

2 votes

An "obvious" probability lemma about random words

answered Mar 15, 2020 at 20:38

2 votes

Examining the Hilbert transform of functions over the positive real line

answered Mar 20 at 12:50

2 votes

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Criteria for Hardy space membership

answered Oct 22, 2023 at 16:57

2 votes

Operator norm of some type of discrete Fourier matrix

answered Sep 11 at 15:05

1 vote

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Equivalent condition for the Pick matrix being positive semidefinite

answered Mar 26 at 17:37

1 vote

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A counterexample showing $BV_p \neq AC_p$

answered Jul 10, 2023 at 12:19

1 vote

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Orthonormal bases in RKHSs via interpolating sequences

answered Aug 28, 2023 at 6:47

1 vote

Pair of positive harmonic functions with negative inner product in Drury-Arveson space

answered Jun 1, 2023 at 16:44

1 vote

What are examples of good toy models in mathematics?

answered Jun 3, 2023 at 22:27

1 vote

$L^2$ space of Hilbert-Schmidt operator valued functions

answered Feb 28 at 6:21

1 vote

Fourier series but different waveform

answered Mar 19 at 17:43

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33 Answers

Maximal Hausdorff dimension of the set on which derivatives do not agree

A curious norm related to the L¹ norm

Is $\frac{|t|}{e^{a|t|}-e^{-b|t|}}$ the Fourier transform of a positive function

Is Toeplitz operator on the Bergman space bounded iff its symbol is bounded?

Does this integral condition characterize $L^\infty$?

Macroscopic sets - a notion of largeness for Lebesgue null sets

Are these two norms on localized versions of $L^p_q$ equivalent?

$L^p$ domination of mixed partial derivatives of the 3rd order by the unmixed ones?

Proof of a discrete isoperimetric inequality

Is the spectrum of a "self adjoint" operator real on $\ell^p$?

Integral means vs infinite convex combinations

Extracting a subsequence Cesàro converging to the limsup of the Cesàro sums

A question on Bloch functions

Examples of theorems where numerical bounds on $\pi$ played a role

Example of an $H^1$ function on the bidisk that is not a product of two $H^2$ functions

Leibniz rule for square root of Laplacian

Is the local maximal function bounded from $W^{1, 1}$ to $L^1$?

$L^p$ domination of mixed partial derivatives by the unmixed ones?

weakly separated sequences in RKHS are separated by Gleason metric

An "obvious" probability lemma about random words

Examining the Hilbert transform of functions over the positive real line

Criteria for Hardy space membership

Operator norm of some type of discrete Fourier matrix

Equivalent condition for the Pick matrix being positive semidefinite

A counterexample showing $BV_p \neq AC_p$

Orthonormal bases in RKHSs via interpolating sequences

Pair of positive harmonic functions with negative inner product in Drury-Arveson space

What are examples of good toy models in mathematics?

$L^2$ space of Hilbert-Schmidt operator valued functions

Fourier series but different waveform