User GGG

3 votes

1 answer

63 views

Sub-fields of $\mathbb{Q}(a)$ ,$a=\sqrt{4+\sqrt{15}}$ using Galois theory.

asked Jun 17, 2022 at 17:17

3 votes

1 answer

61 views

Understanding Representation theory and group actions

asked Oct 9, 2022 at 15:01

3 votes

1 answer

204 views

Order of groups and dimensions of representations [closed]

asked Jan 13, 2023 at 15:09

2 votes

1 answer

1k views

Finding pdf of $Y=\min\{X_1,X_2,...,X_n\}$

asked Jun 10, 2022 at 16:24

2 votes

1 answer

60 views

Limit $\lim_{n\rightarrow \infty} \delta_n$

asked Jan 16, 2021 at 17:49

2 votes

1 answer

75 views

Eigenvalues of invariant subspaces

asked Jun 2, 2022 at 21:32

1 vote

2 answers

143 views

Find the rank of matrix $A$ if $A^3+A^2+A=0$

asked Jun 4, 2022 at 17:35

1 vote

0 answers

82 views

Is the Galois group of $\mathbb{Q} \left(\sqrt{5}+\sqrt{7}+i \right)$ isomorphic to $\mathbb{Z}_{2} \times \mathbb{Z}_{2} \times\mathbb{Z}_{2} $?

asked May 23, 2022 at 16:42

1 vote

1 answer

53 views

How to find a curve $r(t)=R(u(t),v(t))$ ,where $R: \mathbb{R}^2\rightarrow \mathbb{R}^3$ a paraboloid without knowing $u(t),v(t)$

asked Sep 4, 2023 at 17:42

0 votes

0 answers

27 views

$g^{(n)}(b)=(11+13i)^nf^{(n)}(a-b)\cos(n!|f^{(n)}(a+b)|^n)$ using Cauchy's integral formula

asked Sep 18, 2023 at 20:21

0 votes

0 answers

44 views

$\int_{[x,+\infty]}^{}f\,d\lambda\to 0 \,\,\, ,as\,\,\, x\to +\infty$

asked Jan 15 at 15:53

0 votes

0 answers

51 views

If $|C(g)|>|G|/2$, then g$\in Z(G)$?

asked May 20 at 17:38

0 votes

1 answer

41 views

How can an element of order p define if a $\mathbb{C}G$-module or a representation is reducible or irreducible?

asked May 25 at 21:52

0 votes

2 answers

39 views

propositional logic syntax using different symbols

asked Sep 8, 2019 at 20:02

0 votes

1 answer

227 views

How can I show that a matrix A is diagonalizable?

asked May 31, 2022 at 19:31

0 votes

0 answers

30 views

For every $n\geq 3$ ,exists $g_n(x) \in \mathbb{Z}[x]$ of degree 2 : $A^n=g_n(A)$

asked Jun 5, 2022 at 16:15

0 votes

1 answer

60 views

If $c \in \mathbb{Q}(\zeta)$ ,where $\zeta=\zeta_{14}$ is a constructable number ,then $c \in \mathbb{Q}$?

asked Jun 16, 2022 at 18:20

0 votes

1 answer

57 views

Show that for every $n$-primary root of unity that ${\rm Gal}(K(\zeta),\Bbb Q)$ is solvable.

asked Jun 19, 2022 at 18:15

Stack Exchange Network

18 Questions

Sub-fields of $\mathbb{Q}(a)$ ,$a=\sqrt{4+\sqrt{15}}$ using Galois theory.

Understanding Representation theory and group actions

Order of groups and dimensions of representations [closed]

Finding pdf of $Y=\min\{X_1,X_2,...,X_n\}$

Limit $\lim_{n\rightarrow \infty} \delta_n$

Eigenvalues of invariant subspaces

Find the rank of matrix $A$ if $A^3+A^2+A=0$

Is the Galois group of $\mathbb{Q} \left(\sqrt{5}+\sqrt{7}+i \right)$ isomorphic to $\mathbb{Z}_{2} \times \mathbb{Z}_{2} \times\mathbb{Z}_{2} $?

How to find a curve $r(t)=R(u(t),v(t))$ ,where $R: \mathbb{R}^2\rightarrow \mathbb{R}^3$ a paraboloid without knowing $u(t),v(t)$

$g^{(n)}(b)=(11+13i)^nf^{(n)}(a-b)\cos(n!|f^{(n)}(a+b)|^n)$ using Cauchy's integral formula

$\int_{[x,+\infty]}^{}f\,d\lambda\to 0 \,\,\, ,as\,\,\, x\to +\infty$

If $|C(g)|>|G|/2$, then g$\in Z(G)$?

How can an element of order p define if a $\mathbb{C}G$-module or a representation is reducible or irreducible?

propositional logic syntax using different symbols

How can I show that a matrix A is diagonalizable?

For every $n\geq 3$ ,exists $g_n(x) \in \mathbb{Z}[x]$ of degree 2 : $A^n=g_n(A)$

If $c \in \mathbb{Q}(\zeta)$ ,where $\zeta=\zeta_{14}$ is a constructable number ,then $c \in \mathbb{Q}$?

Show that for every $n$-primary root of unity that ${\rm Gal}(K(\zeta),\Bbb Q)$ is solvable.