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Mathematics
Bruno B's user avatar
Bruno B's user avatar
Bruno B's user avatar
Bruno B
  • Member for 1 year, 9 months
  • Last seen this week
  • France
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He/him. Currently just a student taking a peek into the beauty of math.

(Hopefully my English is and will be understandable. Sorry in advance.)

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10
Evaluate $\lim_{n \to \infty} n \prod_{m = 1} ^ n \left(1 - \frac1m + \frac5{4m ^ 2}\right)$
Jun 7, 2023
8
If every dense subspace of a normed space $E$ is of finite codimension, is $E$ finite-dimensional?
Jan 22, 2023
7
Does there exist an everywhere weakly continuous but nowhere strongly continuous function $f : [0,1] \to X$?
Apr 14, 2023
7
What is wrong with this proof by contradiction?
Feb 17
7
Functions $f(x)$ for which the set of functions $af(x+b)$ is closed under addition
Dec 3, 2023
7
A Holder-continuous function differentiable a.e. is absolutely continuous?
Jul 24, 2023
7
Error in Gradsteyn and Ryzhik?
Jul 7, 2023
7
A function in $L^1(\mathbb{R}^d)$ satisfying $f(x)+f\ast g(x)=e^{-|x|^2}.$
Jun 21, 2023
7
Prove or disprove: Let $f$ be a non-constant polynomial, then $f(x)f(1/x)=1~\Rightarrow~f(x)=\pm x^n,$ for some $n \in \Bbb N$
Oct 21, 2022
6
If $\langle Lx,y\rangle = \langle x,Ry \rangle$ then $L$ is bounded
Feb 5