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Mathematics
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vitalmath
  • Member for 3 years, 7 months
  • Last seen more than a week ago
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question
7
Show that a countable and dense set $A$ of $\mathbb{R}$ is not closed.
Aug 29, 2022
question
5
Show that $(x_n)_n$ is convergent.
Sep 9, 2021
question
5
Extension of an irreducible polynomial of degree $3$
Mar 7, 2022
question
3
Compute $F(x)$ and $\displaystyle{\lim_{x \to \frac{\pi}{2}}} F(x)$
Mar 3
question
3
Question on cyclotomic polynomials and the Möbius function
Apr 3, 2022
question
3
bounded convergence in $L^2$ and $\mathcal{D}'$
Mar 18, 2022
question
2
Are two quadratic forms equivalent over $\mathbb{Q}$
Oct 22, 2022
question
2
Consider the operator $V f(x)=\int_x^1 f(t) \mathrm{d}t$ of $C^0([0,1])$ in itself. Compute its norm and determine its image.
Sep 4, 2022
question
2
Questions regarding the submodules of a $\mathbb{F}[X]$-module
Oct 29, 2021
question
2
$G$ abelian if $\Leftrightarrow$ all its irreducible representations are of degree $1$
Dec 6, 2021