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nomadicmathematician
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24
Give an example of a non-separable subspace of a separable space
Apr 17, 2014
17
Is the dihedral group $D_n$ nilpotent? solvable?
Jun 15, 2014
16
Using Wallis' formula to show the limit of $a_n:=n!\left(\frac{e}{n}\right)^n n^{-1/2}.$
Dec 31, 2016
14
Let $(s_n)$ be a sequence of nonnegative numbers, and $\sigma_n=\frac{1}{n}(s_1+s_2+\cdots +s_n)$. Show that $\liminf s_n \le \liminf \sigma_n$.
Sep 29, 2015
13
Schilling's proof of the Feynman-Kac Formula for Brownian motion
Sep 19, 2017
12
Find all continuous functions satisfying $\int_0^xf=(f(x))^2+C$ for some constant $C \neq 0$.
Feb 5, 2015
10
Example of distinctions between multiple integral and iterated integrals.
Oct 14, 2015
9
Question about proof of Stein's Lemma by Casella and Berger
Jan 25, 2018
9
Suppose that $f: \mathbb{R^+}\to \mathbb{R}$ satisfies $\lim_{x\to \infty} (f+f')(x)=0$. Show that $\lim_{x\to \infty} f(x)=0$. [duplicate]
Sep 12, 2015
9
Proof of every finite group is finitely presented.
Feb 29, 2016