Rasmus

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200 Answers

newest activity votes
2
Nice examples of groups which are not obviously groups
3
Question about partition of open sets in $\mathbb{R^n}$
2
Inequality regarding weak-* convergence
5
Help following this solution
3
Proof that $(\mathbb{N}\times\mathbb{N},\preceq), (a,b)\preceq(c,d)\iff a\leq c\wedge b\geq d$ is a poset
2
How to embed $(X,\mathcal T)$ in the product topology $\prod_{i\in I}(X,\mathcal T_i) $
2
Homeomorphisms of the 3D sphere
2
Abstract algebra book recommendations for beginners.
1
Total Orders and Minimum/Maximum elements
1
Dimension of a space
12
Are any two open connected subsets of $\Bbb{R}^n$ homeomorphic?
4
Value of $(a=1) \wedge (b=1) \wedge (c=2)$ given $a=1$, $b=2$ and $c=2$
2
Set of states not compact
3
How to see the elements of a quotient set
7
What is $\operatorname{Ext}_{\mathbb{Z}} (\mathbb{Z}/m\mathbb{Z},\mathbb{Z}/n\mathbb{Z})$?
1
Why can't $\theta(0)$ be $0$? (tempered distributions)
1
Matrix Representation of Linear Transformations
4
Coproducts in $\text{Ab}$
5
How to show that these groups are not isomorphic?
2
Examples of measurable and non measurable functions
1
What's the definition of a free module in an abelian category?
3
What is an odd permutation in the centralizer of (1,2,3)(4,5,6) in $S_6$?
2
Tensor product and Kronecker Product
10
How to prove if function is increasing
7
Continuation of strictly monotone functions on $\mathbb{R}$
1
There is a stright formula for calculate n Power Sets P(A) of a A set with m members
5
Strong convergence does not imply operator norm convergence
3
What is the relationship between $\pi_{2}\overline{X}$ and $\pi_{2}(X)$?
2
What is the cokernel of this map?
2
Fourier transform of the derivative - insufficient hypotheses?
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