User Christophe Leuridan

17 votes

Accepted

Can nonnegative functions $f(x,y,z)$ be written as a product of pairwise functions $u(x,y) v(y,z) w(x, z)$?

answered Jan 31, 2023 at 16:52

16 votes

Examples of bad notation and its consequences

answered Apr 19, 2023 at 21:54

10 votes

Solving a limit about sum of series

answered Apr 5, 2023 at 19:13

8 votes

Accepted

If $n=2m$, what is the order of the permutation $\sigma(k)=2k , \quad \sigma(m+k)=2k-1$

answered Feb 17, 2023 at 20:25

8 votes

Random pseudo-walk of Poisson variables

answered Dec 17, 2023 at 22:11

7 votes

Accepted

Central limit theorem for irrational rotations

answered Nov 24, 2023 at 21:30

7 votes

The expected value of product of random variables which have the same distribution but are not independent

answered Jan 21 at 11:53

7 votes

Square root of prime numbers

answered May 6, 2022 at 19:40

7 votes

Forcing the uniqueness of a solution of an ODE

answered Sep 8, 2022 at 16:08

6 votes

Accepted

Spectra of products variously permutated

answered Dec 18, 2023 at 18:55

6 votes

Accepted

Existence of weird complex norms

answered Feb 13, 2023 at 14:59

5 votes

Accepted

A nonlinear mapping on $L^2(S^1)$ that commutes with all translation operators is necessarily measurable?

answered Nov 25, 2023 at 0:38

5 votes

Rigorous estimates on roots of function

answered Dec 15, 2022 at 16:34

4 votes

Accepted

A convergence problem

answered Nov 30, 2022 at 21:33

4 votes

Accepted

Enlargement of filtration

answered Jun 29, 2022 at 19:47

4 votes

Accepted

Asking for reference about a relation related to Fourier transform

answered Jun 30, 2022 at 10:47

4 votes

Accepted

Integral of $M^\text{} - M$ with respect to $M^\text{}$ is zero for $M^\text{*}$ the running maximum of $M$ a continuous local martingale

answered Jun 14, 2023 at 19:22

3 votes

Another curious martingale

answered Dec 20, 2023 at 20:32

3 votes

Accepted

Equivalence of unions in probability theory

answered Feb 16, 2023 at 14:12

3 votes

Reducing recurrence relations mod10

answered May 6, 2022 at 19:05

3 votes

Upper bound for an inverse Laplace transform

answered May 11, 2023 at 20:01

3 votes

Conditional expectation: commuting integration and supremum

answered May 21, 2023 at 7:26

3 votes

Accepted

Decay of the Fourier transform of a non-differentiable function

answered Jul 6, 2022 at 10:26

3 votes

A functional inequality which calculates the limitation of human eyes

answered Jun 22, 2022 at 19:15

3 votes

Find the distribution of maximum of $B_t-t$

answered Jan 26 at 15:30

2 votes

Accepted

Conditional probability distribution of a Brownian particle surviving forever

answered Jun 23, 2022 at 16:18

2 votes

Accepted

Positive, monotone decreasing function, with derivative limit in 0 equal to ∞ submultiplicative up to an factor?

answered Jun 25, 2022 at 18:50

2 votes

upper bound on sum of product of binomial coefficients

answered Jun 9, 2022 at 8:30

2 votes

Integrated square difference of Brownian bridges

answered Nov 21, 2022 at 18:55

2 votes

Conditional expectation of linear combination of Rademacher RVs

answered Nov 22, 2022 at 15:08

Stack Exchange Network

77 Answers

Can nonnegative functions $f(x,y,z)$ be written as a product of pairwise functions $u(x,y) v(y,z) w(x, z)$?

Examples of bad notation and its consequences

Solving a limit about sum of series

If $n=2m$, what is the order of the permutation $\sigma(k)=2k , \quad \sigma(m+k)=2k-1$

Random pseudo-walk of Poisson variables

Central limit theorem for irrational rotations

The expected value of product of random variables which have the same distribution but are not independent

Square root of prime numbers

Forcing the uniqueness of a solution of an ODE

Spectra of products variously permutated

Existence of weird complex norms

A nonlinear mapping on $L^2(S^1)$ that commutes with all translation operators is necessarily measurable?

Rigorous estimates on roots of function

A convergence problem

Enlargement of filtration

Asking for reference about a relation related to Fourier transform

Integral of $M^\text{} - M$ with respect to $M^\text{}$ is zero for $M^\text{*}$ the running maximum of $M$ a continuous local martingale

Another curious martingale

Equivalence of unions in probability theory

Reducing recurrence relations mod10

Upper bound for an inverse Laplace transform

Conditional expectation: commuting integration and supremum

Decay of the Fourier transform of a non-differentiable function

A functional inequality which calculates the limitation of human eyes

Find the distribution of maximum of $B_t-t$

Conditional probability distribution of a Brownian particle surviving forever

Positive, monotone decreasing function, with derivative limit in 0 equal to ∞ submultiplicative up to an factor?

upper bound on sum of product of binomial coefficients

Integrated square difference of Brownian bridges

Conditional expectation of linear combination of Rademacher RVs