Mathematics
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aleph0
  • Member for 4 years, 11 months
  • Last seen more than 2 years ago
  • France, Lyon
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18
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14
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About

Math first year undergraduate student.

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6
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All Questions Answers
Score Newest
question
12
Compute $\int_0^{\pi} \frac{\cos(nx)\cos(x) - \cos(nt)\cos(t)}{\cos(x) -\cos(t)}dt$
Jan 4, 2019
question
12
Norms on $\mathbb{R}^2$ that send integer lattice points on integer
Jun 21, 2019
question
6
Factorization of a linear map by multiple other maps
Jan 2, 2020
question
4
Well ordered subsets of $\mathbb{R}$
Aug 24, 2019
question
4
Limit of $ \frac{f(h+k) - f(k) - f(h) + f(0)}{hk}$
Nov 7, 2019
question
3
$f$ continuous, $f_a:x\mapsto f(a+x)-f(x)$ polynomial for all a. Show that $f$ is polynomial
Jun 13, 2019
answer
3
Prove whether $f(n)$ is $O$, $o$, $\Omega$, $\omega$ or $\Theta$ of $g(n)$. $f(n) = n$, $g(n) = (\log n)^c$ for positive integer $c$.
Feb 24, 2019
question
2
Find all $P\in \mathbb{C}[X]$ such that $P(\mathbb{Q})\subset \mathbb{Q}$ [duplicate]
Feb 8, 2019
question
2
Let $f\in\mathcal{L}(E)$, show that $\left(\dim\ker f^{n+1} - \dim\ker f^n\right)_{n\ge 1}$ is decreasing
Mar 16, 2019
question
2
Show that $S_n$ is never isomorphic to a subgroup of $A_{n+1}$ for $n\ge 2$
Mar 31, 2019

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