Reputation
5,505
Top tag
Next privilege 10,000 Rep.
Access moderator tools
Badges
3 18 49
Impact
~148k people reached

Jun
7
accepted $ d(x,y)^2 \le d(x,z)^2 - d(y,z)^2\color{}{+\varphi\big(x,y,z,d(x,y),d(y,z) \big)}? $
Jun
6
revised Calculating the convex conjugate of the function $f(x)=\lim_{n\to \infty}\left(-\frac{1}{n}\log \sum_{k=1}^n e^{a_k\cdot x+b_k}\right)$.
Simplifying notation.
Jun
5
asked Calculating the convex conjugate of the function $f(x)=\lim_{n\to \infty}\left(-\frac{1}{n}\log \sum_{k=1}^n e^{a_k\cdot x+b_k}\right)$.
Jun
5
asked Legendre–Fenchel transformation $ f^{\ast}(x^\ast)=\sup_{x\in\mathbb{R}^n}\{\langle x,x^\ast\rangle -f(x)\} $
May
25
comment Dvoretzky–Kiefer–Wolfowitz inequality holds for discrete distributions?
What is your attempt to deal with the problem? You searched examples or counterexamples?
May
25
revised Dvoretzky–Kiefer–Wolfowitz inequality holds for discrete distributions?
Add link to inequality.
May
24
revised Limit Summation interchanging
added 35 characters in body
May
13
answered $ d(x,y)^2 \le d(x,z)^2 - d(y,z)^2\color{}{+\varphi\big(x,y,z,d(x,y),d(y,z) \big)}? $
May
2
comment Number of circuits that surround the square.
see also another related question here.
May
2
comment The problem of the most visited point.
see also another related question here.
Apr
27
revised Existence and uniqueness theorems for ODE. Log-Lipschitz regularity.
added 3 characters in body; edited tags
Apr
27
comment Why $\int_{\mathbb R^n}e^{-\sum_{i=1}^n x_i^2} \, dx_1\cdots dx_n=\omega_{n-1}\int_0^\infty e^{-r^2}r^{n-1} \, dr$
Did you mean that $\sum_{i=1}^1 x_i^2=1$ rather than $\sum_{i=1}^1 x_i=1$ ?
Apr
27
comment Why $\int_{\mathbb R^n}e^{-\sum_{i=1}^n x_i^2} \, dx_1\cdots dx_n=\omega_{n-1}\int_0^\infty e^{-r^2}r^{n-1} \, dr$
Did you mean that $\omega_{n-1}$ is the area of surface rather than $\omega_{n-1}$ be the surface?
Apr
23
reviewed Approve What is cosine to the power of zero?
Apr
17
revised Proof on the inequality involving matrix splitting and trace operator
Language problems correction.
Apr
15
revised Evaluating: $I_1 = \sin^{-1} \left(\sqrt{\frac{x}{x+a}}\;\right) $
added 10 characters in body; edited title
Apr
11
awarded  Nice Question
Apr
5
revised If $f$ is a continuous function such that $|f(x+y)-f(x)-f(y)|$ is bounded and $f(n)=o(n)$, then $f$ is bounded
added 55 characters in body
Apr
5
answered If $f$ is a continuous function such that $|f(x+y)-f(x)-f(y)|$ is bounded and $f(n)=o(n)$, then $f$ is bounded
Apr
4
revised When a function contains a sequence, and how to find the function's limit?
better clarification of the equalities used