Tim
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 Dec 18 asked Approximate the unit ball in an infinite-dimensional Hilbert space, by compact sets? Dec 15 asked If $|f_i(x_1) - f_i(x_2)| \leq a$ for all $f_i$'s, does $| \min_i f_i(x_1) - \min_i f_i(x_2) | \leq a?$ Dec 13 asked Meaning of “within a constant factor from”? Dec 5 asked Condition on $f$ for $f(x+y) \leq f(x) + f(y)$? Dec 5 asked Application of Jensen's inequality Dec 1 asked Relative complement and subtraction. Dec 1 asked Can a randomized rule induce a random measure on the action space? Nov 14 asked When can $\sup_x$ and $\sup_y$ be swapped? Nov 14 answered Is it true that $\sup_x (f(x) - g(x)) \geq \sup_x f(x) - \sup_x g(x)?$ Nov 14 asked Is it true that $\sup_x (f(x) - g(x)) \geq \sup_x f(x) - \sup_x g(x)?$ Nov 10 asked When can we take $A$ somehow out of $\langle x,Ay\rangle$? Nov 5 asked Can Cauchy Schwarz inequality be proven using Jensen's inequality? Nov 5 asked Writing clear proofs involving multiple theorems and conditions Nov 5 asked If $X < a$, $EX < a$? Nov 4 asked Independence and uncorrelatedness between two normal random vectors. Nov 4 asked Are two random vectors independent, iff every pair of components from each vector are independent? Nov 4 asked Does a Pareto distribution always have variance? Nov 3 answered For $E (X - EX)^2$ to exist, do we need $EX$ to exist and be finite? Nov 3 asked For $E (X - EX)^2$ to exist, do we need $EX$ to exist and be finite? Nov 3 asked If $\mathrm{E} |X|^2$ exists, then $\mathrm{E} X$ also exists