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Jun
17
accepted What property of a matrix causes $\|e^{tA}\|_2$ to oscillate as $t\rightarrow\infty$?
Jun
6
accepted Given a biased coin $P(X=0)=.75$, can someone show me a compression scheme that beats 1 bit
Jun
2
accepted What is the first order approximation to a differentiable function $F:M_{n\times n}(\mathbb{R})\to\mathbb{R}$
Jan
28
accepted Show both relaxations of boolean LP give equal lower bounds
Mar
11
accepted Prove the set of sequences $c_0$ which converge to zero in $l_{\infty}$ is closed.
Jan
29
accepted Prove this matrix is invertible for $n < m-1$
Oct
5
accepted Prove that $\frac{d}{dx}\int_0^xf(x,y)dy = f(x,x)+\int_0^x\frac{\partial}{\partial x}f(x,y)dy$
Sep
25
accepted Let $b_n$ decrease monotonically to zero, prove $\sum b_nz^n$ converges for $|z|\leq 1$ and $z\neq 1$
Aug
18
accepted Question on sufficient statistics
Aug
18
accepted Show that $(x+1+O(x^{-1}))^x = ex^x + O(x^{x-1})$ for $x\rightarrow \infty$
Aug
15
accepted Calculating a probability mass function (sufficient statistic)
Jul
22
accepted Sampling 100 widgets to test for defective ones
Jul
6
accepted Prove that the number of ways to put $n$ distinct balls into $n$ distinct boxes is $n^n$
Jun
4
accepted Understanding Conditional Expectation
May
29
accepted Rigorous proof that $\int_{\Omega}X\;dP=\int_{-\infty}^{\infty}xf(x)\;dx$
May
29
accepted For $\mu(X)<\infty$ and $f_n<\infty$ a.e. s.t. $\forall M$ $\exists n$ s.t. $\mu(\{f_n>M\})\geq\delta$, then $f_n$ diverges on set of positive measure
May
25
accepted An alternate proof of Egorov's Theorem
May
17
accepted The semifinite portion of a measure $\mu$
May
16
accepted Counterexample to upper continuity
May
8
accepted Using the Residue Theorem for a contour integral along the Riemann sphere