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visits member for 2 years, 8 months
seen Jul 15 at 22:08

Nov
24
accepted Unlike Jensen's Inequality, can we upper bound $\log \sum_{i}{u_i \exp(x_i)}$?
Feb
4
accepted What is the combinatorial meaning of $\sum\limits_{R = 0}^{N}\binom{N}{r}\binom{N-R}{n-r} = \binom{N+1}{n+1}$?
Jan
23
accepted Is the multiplicative Chernoff bound stronger than additive one?
Nov
11
accepted L1 Minimization with Non-negativity constraints.
Oct
5
accepted How to prove the double sample trick inequality $\frac{1}{2} \Pr[|v_1-p| \geq 2 \epsilon] \leq \Pr[|v_1-v_2| \geq \epsilon]$?
Sep
15
accepted How to Solve the Matrix Equation $WB = AV$?
Jun
26
accepted Is There a $R^2 \rightarrow R^2$ Linear Transformation to Make XOR Problem Separable?
Jun
16
accepted The definition of $f(z)$ being analytic at point $\infty$
Jun
16
accepted What is the Laurent Series of $\cos{\frac{1}{\sqrt{z}}}$ at point $z=0$?
Jun
15
accepted The Ambiguous Use of Differential in Solving Differential Equations?
Jun
15
accepted Does Normal Equation in Linear Regression Have A Unique Solution?
Jun
15
accepted Can we find a map for a non-planar graph? how to prove it?
Jun
15
accepted Is it A Good Idea To Write Papers With Mathematica?
Jun
15
accepted What is the Arg of $\sqrt{(t-1)(t-2)}$ at the point $t=0$?
Jun
10
accepted Fitting of Closed Curve in the Polar Coordinate.
May
27
accepted Intuitive Understanding About the Implicit Function Theorem
May
20
accepted The Laurent Series of $\sqrt{(z-1)(z-2)}$ at the point $z=\infty$?
Mar
11
accepted A Problem of Counting Expectation of Inversions in a Half-Sorted List.
Feb
26
accepted Is There Any Solution Of the 6174 Problem?
Jan
16
accepted The Binary Representation in Number Theory?