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15h
answered Fixed Field of $\sigma, \tau$
1d
answered Galois invariants of the Tate module of an elliptic curve over a number field
Aug
27
answered Ramification in $\mathbb Q(i,\sqrt[4]\pi)/\mathbb Q(i)$
Aug
25
answered Roots of $\Phi_{31}(x)$ as roots of unity.
Aug
24
answered Find a $u$ so that $k(u)$ is the fixed field of $φ$, determine the minimal polynomial over $k(u)$
Aug
24
answered Find the cube roots of $ -8 i $ and plot them on a plane.
Aug
23
answered Two definitions of ramification groups, why are they equivalent?
Aug
19
answered Understanding $Gal(\bar k /k)$
Aug
14
answered height of formal group of an elliptic curves
Aug
13
answered Does $\cos (\pi/5)$ belong to $\mathbb{Q} (\sin(\pi/5))$?
Aug
11
answered Show that $\mathbb{Q}(\sqrt{2},\sqrt{3},\dots,\sqrt{p},\dots)$ is an algebraic extension of $\mathbb{Q}$, for $p$ prime.
Aug
11
answered When is a Morphism between Curves a Galois Extension of Function Fields
Aug
10
answered Finding Galois group of $K=\Bbb{Q}(\omega,\sqrt2)$, showing that $K=\Bbb{Q}(\omega\sqrt2)$, and finding $\operatorname{min}(\omega\sqrt2,\Bbb{Q})$
Aug
3
answered Field norm of $F(\sqrt[n]{a})$
Jul
30
answered $2$-adic sequence converging to $\sqrt{-7}$.
Jul
30
answered How to prove that the line perpendicular to the radius is the tangent in the calculus sense?
Jul
28
answered 8 cubes ($2$x$2$x$2$) crossed by a straight line
Jul
23
answered Third point of intersection is also a point of inflection?
Jul
22
answered Problem on Galois theory and irreducible polynomial
Jul
22
answered How to evolve an expression with two denominators