Gabriel F. Silva
• GitHub
• Brasília, Brazil
• Member for 1 year, 10 months

### Questions (14)

 4 Are these infinite groups decomposable? 4 If maximal subgroups of solvable group have equal cores, then they are conjugates 2 Sufficient Criterion for Word Equivalence in Idempotent Semigroups 2 The Class of Finitely Generated Groups Can Be Axiomatized in $\mathcal{L}_{\omega_1 \omega}$ 1 If $f^* \omega = 0$ for every affine transformation $f$, then $\omega = 0$

### Reputation (363)

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 4 How to show this polynomial is irreducible over $\mathbb{Q}$? 2 Every Finite Group Has a Nilpotent Contranormal Subgroup 1 $f[a,b]$ has measure zero 1 Example of a bounded set with measure zero, whose frontier has no measure zero. 1 The rank of a linear transformation $A: E \longrightarrow F$ is the largest integer such that the pullback of A is not zero

### Tags (25)

 4 abstract-algebra × 7 1 differential-forms × 3 4 galois-theory 1 linear-algebra 4 irreducible-polynomials 0 logic × 7 1 real-analysis × 9 0 group-theory × 5 1 proof-verification × 3 0 first-order-logic × 5

### Bookmarks (6)

 32 Lamport claims there is an error in Kelley's proof of the Schroeder-Bernstein theorem. What is it? 4 If maximal subgroups of solvable group have equal cores, then they are conjugates 3 Class of structures isomorphic to $(\mathbb{Z},<)$ in infinitary logic $L_{\omega_1 \omega}$ 0 $PSL(2, 11)$ has non isomorphic Hall subgroups [duplicate] 0 The set of satisfiable $S_{\infty}$-sentences is not $R$-enumerable

### Accounts (14)

 Mathematics 363 rep 22 silver badges1010 bronze badges Computer Science 175 rep 11 silver badge77 bronze badges Stack Overflow 101 rep 33 bronze badges Software Engineering 101 rep 11 bronze badge Meta Stack Exchange 101 rep 22 bronze badges