Mathematics
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Bambeil
  • Member for 4 years, 10 months
  • Last seen more than 1 year ago
  • Poland
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17 Questions

Score Activity Newest Views
3 votes
4 answers
218 views

Differential equation $y'' - y + 2\sin(x)=0$

2 votes
2 answers
200 views

Show that degree of $\mathbb{Q}(\sqrt{1+\sqrt3}):\mathbb{Q}=4$

2 votes
2 answers
76 views

Find minimum of function and minimum point

2 votes
1 answer
639 views

Is the extension $\mathbb{Q}(\sqrt{5},\sqrt{7})$ simple? If so/not, why?

1 vote
1 answer
163 views

The degree of extension

1 vote
1 answer
42 views

Concerning extensions of the rationals

1 vote
1 answer
73 views

Is the quotient space finite-dimensional linear space?

1 vote
3 answers
441 views

Solve PDE $u_{xy}+xyu+yu_{x} + xu_{y}=0$

0 votes
1 answer
223 views

Check that the corresponding extensions are normal

0 votes
2 answers
97 views

Solve the differential equation $x''=9.8-k(x')^2$

0 votes
1 answer
140 views

The proof that $\sqrt{q}$ is a rational number iff $q$ is a perfect square

0 votes
1 answer
270 views

Inequality $\deg(f-g) \le \max(\deg(f),\deg(g))$

-1 votes
1 answer
74 views

Is the extension $\mathbb{Q}(\alpha)/\mathbb{Q}$, where $\alpha = 2\pi i /3$, a splitting extension? [closed]

-1 votes
1 answer
82 views

Are sets everywhere dense in rational numbers set?

-1 votes
2 answers
342 views

Dihedral and permutation groups isomorphism [closed]

-2 votes
1 answer
180 views

Is the symmetry group of the square isomorphic to $\mathbb{Z_8}$? to $\mathbb{S_8}$? to a subgroup of $\mathbb{S}_8$? [closed]

-2 votes
2 answers
56 views

Is it v1,v2,v3,.. converging sequence of space $\mathbb{E}$? [closed]

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