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Mathematics
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simo210
  • Member for 1 year, 6 months
  • Last seen more than a week ago
  • Milan, Italy
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Undergrad Math Student in Italy.

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7
Quadratic and quartic subfields of $\mathbb{Q}(\zeta_{2023})$
Apr 26, 2023
5
Hypotheses of Nakayama's lemma are necessary
May 16, 2023
5
UFD characterization via module theory
Jun 17, 2023
4
For a finite abelian $G$, $f: G\to G$ defined by $f(g)=g^2$ is an isomorphism iff $|G|$ is odd
Feb 3, 2023
4
Finding a Galois extension( Inverse Galois problem)
Feb 5, 2023
4
Proving $S^1$ is not homeomorphic to $S^n$ for $n>1$
Apr 23, 2023
2
Different computation of $\operatorname{Ext}_{\mathbb{Z}}^1(\mathbb{Z}/n\mathbb{Z},\mathbb{Z})$
Jun 27, 2023
2
Find all homomorphisms from $\mathbb{Q}(\sqrt[5]2)$ to $\mathbb{Q}(\sqrt[5]2, \omega)$
Feb 1, 2023
2
Let $X$ and $Y$ are copies of $S^2$ taking points $x_1,x_2 \in X$ and $y_1, y_2 \in Y$ then $\pi_1(X \bigsqcup Y/x_1\sim y_1,y_2\sim x_2 )?$
Feb 2, 2023
2
Check proof that every manifold has a basis of precompact open sets.
Feb 2, 2023