New posts in abstract-algebra

"Almost" ring homomorphism

Are Hilbert primes also Hilbert irreducible ? Furthermore, are Hilbert primes also primes in $\mathbb{ Z}$?

Set of elements in $K$ that are purely inseparable over $F$ is a subfield

Chebyshev polynomials semigroup property $T_n \circ T_m = T_{nm}$

If $G$ is a finite group, $H$ is a subgroup of $G$, and there is an element of $G/H$ of order $n$, then there is an element of $G$ of order $n$

Prove that $\mathbb{C}[x,y] \ncong \mathbb{C}[x]\oplus\mathbb{C}[y]$

Irreducibility of Multivariable Polynomials

How to find subgroups of $ \;\;\Bbb Z_2\times \Bbb Z_6$

Why is the exterior algebra a bi-algebra (and even a Hopf algebra)?

Show that, for every $n$, $A_{n+2}$ has a subgroup isomorphic to $S_n$

Where does the Jordan canonical form show up in more advanced mathematics?

Solutions to the equation $a^2x-b^2x^2=c^2$

Does $[\mathfrak{h},[\mathfrak{h},\mathfrak{h}]]=0$ imply $[\mathfrak{h},\mathfrak{h}]=0$?

Am I the only one constantly forgetting the Eisenstein criterion? [closed]

$x^4+x^3+x^2+x+1$ irreducible over $\mathbb F_7$

Possible Jordan Canonical Forms Given Minimal Polynomial

The group of roots of unity in an algebraic number field

Is it possible that $(ab)^{-1}$ is defined although $a^{-1},b^{-1}$ are not?

How to show the only absolute value on a finite field is the trivial one.

Why does $\sum a_i \exp(b_i)$ always have root?