New posts in abstract-algebra

Fiber of a map between spectra

On prime ideals in a polynomial ring over a PID (from Reid's _Commutative Algebra_)

If G is a primitive group action on A, then $G_a$ is a maximal subgroup of G

Is the general linear group generated by elementary matrices?

Is $e$ a zero of power series with rational coefficients?

How can I know how many real roots this polynomial has?

Tor Functor Commutes with Direct Limits

Commutative integral domain with d.c.c. is a field [duplicate]

Question About Notation In Field Theory $F(x)$ vs. $F[x]$

What is $\operatorname{Hom}_\mathbb{Z}(\mathbb{Q}/\mathbb{Z},\mathbb{Q}/\mathbb{Z})$?

Counting cycle structures in $S_n$

$K[X^2,X^3]\subset K[X]$ is a Noetherian domain and all its prime ideals are maximal

Reference for a fast introduction to the bare minimum of Abstract Algebra

Factor $X^7 − 1$ into irreducibles in $\mathbb{Z}_{127}[X]$

$|\operatorname{Aut}(K/F)| \leq [K:F]_s$ holds in general?

These two group theory statements are "the same"?

Tensors as matrices vs. Tensors as multi-linear maps

$A/ I \otimes_A A/J \cong A/(I+J)$

Is the group $U(8)$ cyclic?

Where is the symmetric group hidden in the Yoneda lemma?