Matemáticos Chibchas

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A shy, neither amateur nor high-class, mathematician from Colombia.


45 Answers

newest activity votes
7
Interpolation of analytic function on unit disk
6
Show that $\overline{\overline{X}} = \overline{X}$ for all subsets $X$ of a metric space $S$.
6
Does this double series converge?
6
Existence of a certain continuous function on the unit interval
5
If $u$ is separable over $K$ and $v$ is purely inseparble over $K$, then $K(u,v)=K(u+v)$.
4
Find countable set that is not in the additive, multiplicative closure of a finte set.
4
how prove that $|f(x)|\ge2^n (n+1) $ under these conditions?
4
Application of fundamental theorem of calculus
4
Characterisation of closed balls in terms of diameters
4
Distance in at most countable metric spaces
4
Does anyone know a closed-form expression for a bijection between $\mathbb{N}^k$ and $\mathbb{N}$?
3
$x_{n+1} = \sqrt{3x_n}$ converges for $x_1 = 1,x_1 = 27$ Proof
3
Finding a mistake in the incorrect proof for $(S\setminus T)\circ R\subseteq (S\circ R)\setminus(T\circ R)$
3
Given $\tau\in{S_n} $ a cycle of length $m$ that $\tau^{m} = e$
2
Elementary connected proof
2
Is there a known distribution for this permutation with replacement problem?
2
Compute the next integral
2
Pseudocode for view the combinations .
2
Question on finite dimensional vector space
2
Is the closure of path-connected set path connected?
2
How would I find the number of solutions to equation
2
Commutation of limits of double sequence
2
If (V,||) is a normed vector space and $X\subset V$ compact, does every Cauchy sequence have a limit in X
2
Quotient of entire functions which is also entire.
1
Combinatorial Sum
1
Is there an intuitive proof of the identity $ \sum_{L \subset S} \prod_{x \in L} (x-1) = \prod_{x \in S} x$ from general principles?
1
$\operatorname{dist}(A, B) = 0 \land A \cap B = \emptyset \implies \partial A \cap \partial B \neq \emptyset$
1
Simple Laurent series question
1
complex power series
1
Set of continuous function defined on some segment $[0,a]$: triangle inequality
1 2