Newbetuts
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New posts in ring-theory
Structure theorem of finite rings
abstract-algebra
ring-theory
finite-rings
How to show fraction field is flat (without localization)
abstract-algebra
ring-theory
modules
homological-algebra
"Almost" ring homomorphism
abstract-algebra
ring-theory
Multi-pullbacks and the relative chinese remainder theorem
ring-theory
category-theory
ideals
chinese-remainder-theorem
Prove that $\mathbb{C}[x,y] \ncong \mathbb{C}[x]\oplus\mathbb{C}[y]$
abstract-algebra
commutative-algebra
ring-theory
What is the ideal class group of the ring $\mathbb{R}[x,y]/(x^2+y^2-1)$?
ring-theory
algebraic-number-theory
classical-mechanics
Is it possible that $(ab)^{-1}$ is defined although $a^{-1},b^{-1}$ are not?
abstract-algebra
ring-theory
noncommutative-algebra
monoid
What is the minimal number of generators of the ideal $(6x, 10x^2, 15x^3)$ in $\Bbb Z[x]$?
abstract-algebra
ring-theory
ideals
How to construct polynomial ring $K[x]$ over commutative ring $K$ by making use of universal arrows.
ring-theory
category-theory
Is it possible to learn ring theory if one's familiar, but not good at group theory? [closed]
abstract-algebra
group-theory
ring-theory
advice
In a ring, how do we prove that a * 0 = 0?
abstract-algebra
ring-theory
rngs
Commutative rings without assuming identity
abstract-algebra
ring-theory
commutative-algebra
rngs
Should a ring be closed under multiplication?
abstract-algebra
ring-theory
Is there a short proof of $x^2=(-x)^2$ in an arbitrary ring?
abstract-algebra
ring-theory
Is a polynomial ring over a UFD in countably many variables a UFD?
abstract-algebra
ring-theory
unique-factorization-domains
An $R$ module and $S$ module that cannot be an $R$-$S$ bimodule
commutative-algebra
ring-theory
modules
Tensoring is thought as both restricting and extending?
algebraic-geometry
commutative-algebra
ring-theory
Rings with 'non-harmless' zero-divisors
abstract-algebra
ring-theory
Aluffi's proof that $\det(AB)=\det(A)\det(B)$ for commutative rings
linear-algebra
abstract-algebra
ring-theory
commutative-algebra
Prove that (3) is a maximal ideal in $\mathbb{Z}[i]$. [duplicate]
abstract-algebra
ring-theory
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