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Daniel Li's user avatar
Daniel Li's user avatar
Daniel Li's user avatar
Daniel Li
  • Member for 7 years, 6 months
  • Last seen more than a month ago
  • Cambridge, MA, USA
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Top posts
26
Function of $(x_1,x_2,x_3,x_4)$ that factors in two ways as $\phi_1 (x_1 ,x_2 )\phi_2(x_3 ,x_4 )=\psi_1 (x_1,x_3)\psi_2(x_2,x_4)$
Oct 15, 2020
3
Uniform distribution in Euclidean ball is sub-gaussian [closed]
Jun 14, 2020
3
An "elementary" inequality
Sep 5, 2020
3
Gaussian concentration/isoperimetric inequality with correlated Gaussian measure
Jan 2, 2021
3
Show that $v\mapsto\mathbb{E} \operatorname{Prox}_{v h}^{\prime}\left(Y+v\cdot \sigma \mathrm{Z}\right)$ is a decreasing function
Jan 30
2
Matrix derivative w.r.t. a general inverse form: $(A^TA)^{-1/2}D(A^TA)^{-1/2}$
Jun 11, 2021
1
A packing ball problem: verify lower bound on Gaussian width of sparse ball
Aug 24, 2020
1
Gaussian concentration/isoperimetric inequality with correlated Gaussian measure
Jan 4, 2021
0
Minimal perturbation of a Wigner matrix needed to produce an orthogonal top eigenvector
Sep 13, 2020
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9
Condition on sigma algebra
9
Evaluate the infinite product $\prod_{n=1}^{\infty} \left(1-\frac{2}{(2n+1)^2}\right)$
9
How to compare $\pi, e\cdot 2^{1/3}, \frac{1+\sqrt{2}}{\sqrt{3}-1}$
8
Can anyone clarify the concept of a "sum of random variables"
8
How to start doing significant research?