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Mathematics
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Salcio
  • Member for 3 years, 10 months
  • Last seen more than a month ago
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7
Does there exist any continuous function $f:\mathbb{R} \to \mathbb{R}$ such that $f(\mathbb{R}\setminus \mathbb{Q}) = \mathbb{R}$?
Dec 29, 2021
6
Polynomial of degree 'n' related problem
May 2, 2021
6
Set of continuous functions so that for any $x \in \mathbb{R}$ there is some $n$ such that $f_n(x)$ rational
Sep 12, 2022
6
$\cos 2\pi n\theta> 1-\varepsilon$ infinitely often?
Jul 24, 2022
5
Continuous function with irrational period - summation over naturals converges to 0?
Dec 26, 2020
5
Pointwise convergence of polynomials of degree $k$
Jul 29, 2022
4
If $f(x)＝\sum_{n=0}^{\infty}a_n x^n$ is bounded and convergent in $[0,1)$ and $a_n >0$, then $\sum a_n$ converges
Aug 1, 2021
4
If an infinite sum of positive terms $\sum x_n$ diverges, must there exist a sequence $y_n$ with $y_n/x_n \to 0$ and $\sum y_n$ divergent?
Jan 29, 2021
4
Find the extrema points of $ f\left(x\right)=\prod_{i=1}^{n}x_{i} $
Feb 3, 2021
3
Weak convergence of functionals $g_n^*(f) = n\int_0^1 x^nf(x)dx$
Mar 19, 2023