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zxmkn's user avatar
zxmkn
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Stumbling around this world of math. Pease excuse my blunders.

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Inequality with slowly varying functions
May 28, 2022
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WLLN for bootstrap means of stationary ergodic processes?
Sep 25, 2022
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13
Is $f^{-1}\big( \sqrt{xf(x)} \big)$ convex (for large $x$) when $f(x) = o(x)$ is concave and strictly increasing?
9
How is it "easily checked" that $[1-s(\cos\theta + i \sin \theta)] \sum_{n=0}^\infty s^n [\cos(n\theta)+i \sin(n\theta)] = 1$
9
Limit of matrix inverse: $\lim_{\lambda \to \infty} (A + \lambda I)^{-1} = \mathbf{0}$?
9
Problem solvable $\Rightarrow$ subproblems solvable if feasible region closed, convex?
8
$X \geq 0$, $E[X] =\infty$. What's a lower bound for speed at which sample mean $\overline X_n$ diverges toward $\infty$?

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