an_ordinary_mathematician

Member for 4 years, 1 month
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Milano, Italy

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fa.functional-analysis

35/100 score

14/20 answers

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7

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

Mar 27

5

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

Apr 10

5

Macroscopic sets - a notion of largeness for Lebesgue null sets

Nov 28, 2023

5

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

Oct 30, 2023

4

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

Feb 27

Questions

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11

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

Apr 1, 2020

7

A generalization of discrete Hilbert's transform (Montgomery's inequality)

Mar 22, 2020

5

A domination property for the Hardy space $H^1$

Sep 15, 2020

4

Extending a metric in a bi-Lipschitz way

Sep 27, 2022

3

Beurling's theorem on invariant subspaces

Jun 14, 2022

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fa.functional-analysis

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21

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real-analysis

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cv.complex-variables

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12

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inequalities

14

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7

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banach-spaces

13

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6

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Reputation

+65

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

+10

An open problem of Hardy and Littlewood on $p$-integral means

+25

Equivalent condition for the Pick matrix being positive semidefinite

+10

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

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