New posts in field-theory

Show that $\beta $ is algebraic over $F(\alpha)$.

Polynomials such that $\frac{P(x^2)}{P(x)}$ is also a polynomial [duplicate]

Solutions to the matrix equation $\mathbf{AB-BA=I}$ over general fields

What is the main difference between a vector space and a field?

If the field of a vector space weren't characteristic zero, then what would change in the theory?

Is $\{0\}$ a field?

A freshman's dream

Intermediate ring between a field and an algebraic extension.

Why must a field whose a group of units is cyclic be finite?

How to transform a general higher degree five or higher equation to normal form?

A sufficient and necessary condition for $\mathbb{C}(f(x),g(x))=\mathbb{C}(x)$?

Subfields of finite fields

Galois Group of $\sqrt{2+\sqrt{2}}$ over $\mathbb{Q}$

When are nonintersecting finite degree field extensions linearly disjoint?

Do the rings $\mathbb{Z}[x]$ or $\mathbb{Q}[x]$ have a quotient isomorphic to the field with 9 elements?

Suppose that $c$ is transcendental over $\mathbb{Q}.$ Show that $\sqrt{c}$ and $c + \sqrt{c}$ are also transcendental.

Intersection of two subfields of the Rational Function Field in characteristic $0$

How many irreducible polynomials of degree $n$ exist over $\mathbb{F}_p$? [duplicate]

How to prove that $\mathbb{Q}[\sqrt{p_1}, \sqrt{p_2}, \ldots,\sqrt{p_n} ] = \mathbb{Q}[\sqrt{p_1}+ \sqrt{p_2}+\cdots + \sqrt{p_n}]$, for $p_i$ prime?

Is the minimal polynomial also minimal over the closure of the base field? [closed]