Mathematics
Nicolás Vilches's user avatar
Nicolás Vilches's user avatar
Nicolás Vilches's user avatar
Nicolás Vilches
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All Questions Answers
Score Newest
answer
38
Is every vector in $\mathbb Z^3$ a cross product?
Apr 16, 2022
answer
14
Does Young's inequality hold only for conjugate exponents?
Jan 16, 2019
answer
12
Does every diffeomorphism between $\mathbb{B}^n$ and $\mathbb{R}^n$ satisfies that $\lim_{\|x\| \to 1} \|f(x)\| = \infty$
Apr 19, 2022
answer
11
Show that $\frac{1}{n}\sum_{j=1}^\infty \left( 1 - (1-p_j)^n\right) \to 0$ as $n \to \infty$
Dec 23, 2021
answer
6
Show this combinatorical identity
Feb 10, 2017
answer
6
$A=\left\{\sum_{k=1}^n a_ke^{kx}:a_k\in\mathbb R, n\in\mathbb N\right\}$ is dense in $C[a,b]$
Dec 14, 2021
answer
5
If $X\subset\mathbb{N}$ such that $\vert\mathbb{N}\setminus X\vert=\aleph_0,$ does $X$ or $\mathbb{N}\setminus X$ contain an arithmetic sequence?
Feb 4, 2022
answer
5
How to prove in this trig problem
Feb 12, 2017
answer
5
Hartshorne Exercise II.6.10 Proving existence of a filtration for coherent sheaves supported on a closed subscheme.
Jan 28, 2022
answer
5
Let $p, q \in k[x_1,...,x_n]$ with no common divisor. Must there exist $a, b \in k$ so $ap + bq$ is irreducible?
Apr 25, 2022

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