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Mathematics
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user130405
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question
8
A problem about $e^{2\pi i \alpha_1}+e^{2\pi i \alpha_2}+\cdots+e^{2\pi i \alpha_N}=0$
Apr 24, 2015
question
8
Does the limit $\lim_{x\to1^{-}}(1-x)\sum_{n=1}^{\infty}2^{n} x^{2^n}$ exist?
Aug 1
question
4
Let lacunary power series $f_s(x)=\sum_{n=0}^{\infty}a_n^{s} x^{a_n}$, does $\lim_{x\to1}(1-x)f_s(x)$ exist?
Jul 26
question
3
complex analysis (Univalent function )
Feb 21, 2014
question
3
$\mu\approx \nu$ and $\lim_{n\to \infty}\|u_n\|_{L^2(X,\mu)}=0$ imply $\lim_{n\to \infty}\|u_n\|_{L^2(X,\nu)}=0$ ??
Jun 8, 2017
question
2
Integration of irrational Functions
May 24, 2014
question
2
Why $\hat{\mu}\in L^2(\mathbb{R}^n)$ implies $\mu$ absolutely continuous?
Dec 14, 2016
answer
2
continuous function on a set of measure zero
Jul 21, 2017
question
1
Existence of the limit (analysis)
Feb 22, 2014
question
1
A problem about the density of weighted-$L^2$ space
Jun 4, 2017