User Aryeh Kontorovich

36 votes

12 answers

5k views

Examples where existence is harder than evaluation

asked May 7, 2019 at 20:07

30 votes

2 answers

1k views

Minimum number of $|\cdot|$ operations necessary to express $\max$

asked Jun 14, 2023 at 21:16

19 votes

1 answer

1k views

Fubini without CH

asked Jan 2, 2019 at 0:20

15 votes

6 answers

2k views

How to locate an obscure paper?

asked Sep 12, 2011 at 17:48

15 votes

2 answers

1k views

Most papers ever "recalled" due to a flawed result?

asked Jul 6, 2016 at 16:51

14 votes

0 answers

482 views

Lebesgue density 1/2 (or bounded away from 0 and 1)

asked Jan 12, 2017 at 15:27

12 votes

5 answers

721 views

Asymmetric $A \iff B$ proofs

asked Jul 10, 2017 at 9:11

11 votes

2 answers

918 views

Decoupling inequality/counterexample

asked Apr 21, 2022 at 10:37

11 votes

1 answer

1k views

Open problem: $\log n$ factor in Binomial empirical process

asked May 24, 2023 at 21:07

8 votes

1 answer

591 views

Max decoupling inequality

asked May 15, 2022 at 22:27

8 votes

1 answer

871 views

VC-dimension of disambiguated classes

asked Dec 2, 2020 at 17:18

8 votes

1 answer

583 views

Violating the Lebesgue density theorem

asked Aug 29, 2016 at 23:27

7 votes

2 answers

980 views

Missing mass conjecture

asked Apr 5, 2011 at 18:13

7 votes

2 answers

632 views

Non-separable metric probability space

asked Jul 29, 2018 at 20:38

6 votes

1 answer

358 views

Variant of Sierpiński's result on non-atomic measures

asked Jan 17, 2019 at 14:05

6 votes

1 answer

686 views

Embedding metric spaces into Hilbert ones

asked Jun 15, 2019 at 22:49

6 votes

1 answer

1k views

Lipschitz function of independent subgaussian random variables

asked Jun 19, 2019 at 11:30

6 votes

2 answers

3k views

Approximating erf by tanh

asked Dec 31, 2012 at 15:18

6 votes

1 answer

4k views

Distribution and moments of ratio of two beta variables?

asked Nov 7, 2013 at 9:42

6 votes

0 answers

111 views

Area of generalized ellipse

asked Mar 6, 2017 at 11:28

6 votes

3 answers

440 views

Exercise related to log-Sobolev inequalities

asked Mar 26, 2017 at 0:45

5 votes

2 answers

498 views

Doubling dimension vs other metric dimensions

asked Apr 8, 2018 at 10:51

5 votes

0 answers

496 views

Missing mass estimate

asked Apr 3, 2011 at 8:51

5 votes

0 answers

251 views

Generalized convexity

asked Aug 23, 2020 at 14:59

5 votes

1 answer

452 views

Bounding expected maximum via adjacent differences

asked Aug 29, 2023 at 10:34

4 votes

0 answers

97 views

Smoothing continuous functions in metric space

asked May 22, 2020 at 11:26

4 votes

1 answer

230 views

Measurable total order

asked Jun 29, 2020 at 8:20

4 votes

1 answer

479 views

(non) separability of the power set

asked Jan 20, 2019 at 6:28

4 votes

1 answer

248 views

Does measurability of cardinal $\kappa$ imply measurability of $2^\kappa$?

asked Jan 13, 2019 at 22:23

4 votes

1 answer

273 views

A metric stronger than total variation

asked Jul 2, 2018 at 10:55

Stack Exchange Network

78 Questions

Examples where existence is harder than evaluation

Minimum number of $|\cdot|$ operations necessary to express $\max$

Fubini without CH

How to locate an obscure paper?

Most papers ever "recalled" due to a flawed result?

Lebesgue density 1/2 (or bounded away from 0 and 1)

Asymmetric $A \iff B$ proofs

Decoupling inequality/counterexample

Open problem: $\log n$ factor in Binomial empirical process

Max decoupling inequality

VC-dimension of disambiguated classes

Violating the Lebesgue density theorem

Missing mass conjecture

Non-separable metric probability space

Variant of Sierpiński's result on non-atomic measures

Embedding metric spaces into Hilbert ones

Lipschitz function of independent subgaussian random variables

Approximating erf by tanh

Distribution and moments of ratio of two beta variables?

Area of generalized ellipse

Exercise related to log-Sobolev inequalities

Doubling dimension vs other metric dimensions

Missing mass estimate

Generalized convexity

Bounding expected maximum via adjacent differences

Smoothing continuous functions in metric space

Measurable total order

(non) separability of the power set

Does measurability of cardinal $\kappa$ imply measurability of $2^\kappa$?

A metric stronger than total variation