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New posts in noncommutative-algebra
Prove $R/M$ is a division ring for a non-commutative ring $R$ with max ideal $M$
abstract-algebra
ring-theory
noncommutative-algebra
maximal-and-prime-ideals
Lifting idempotents modulo a nilpotent ideal
abstract-algebra
ring-theory
noncommutative-algebra
nilpotence
A weak converse of $AB=BA\implies e^Ae^B=e^Be^A$ from "Topics in Matrix Analysis" for matrices of algebraic numbers.
analysis
matrices
algebraic-number-theory
exponentiation
noncommutative-algebra
Coproduct in the category of (noncommutative) associative algebras
abstract-algebra
ring-theory
category-theory
noncommutative-algebra
Defining algebras over noncommutative rings
ring-theory
soft-question
category-theory
modules
noncommutative-algebra
Why is the constant term of $(1+x+y+xy)^n$ equal to $\frac{1}{2}\binom{2n}{n}$？
polynomials
induction
contest-math
noncommutative-algebra
group-rings
Do people ever study non-commutative fields?
field-theory
noncommutative-algebra
Rings with $a^5=a$ are commutative
abstract-algebra
ring-theory
noncommutative-algebra
automated-theorem-proving
Torsion elements do not form a submodule.
ring-theory
modules
noncommutative-algebra
Smallest non-commutative ring with unity
abstract-algebra
ring-theory
noncommutative-algebra
Does my definition of double complex noncommutative numbers make any sense?
complex-numbers
noncommutative-algebra
Is a finitely generated projective module a direct summand of a *finitely generated* free module?
abstract-algebra
ring-theory
modules
noncommutative-algebra
projective-module
Why are Dedekind-finite rings called so?
abstract-algebra
ring-theory
noncommutative-algebra
How 'commutative' can a non-commutative ring be?
probability
abstract-algebra
reference-request
ring-theory
noncommutative-algebra
(Organic) Chemistry for Mathematicians
group-theory
finite-groups
semigroups
noncommutative-algebra
chemistry
Commutative property of ring addition
abstract-algebra
commutative-algebra
ring-theory
noncommutative-algebra
A ring with few invertible elements
abstract-algebra
ring-theory
noncommutative-algebra
finite-rings
Commuting polynomials in twisted polynomial ring with constant terms satisfying a polynomial relation
abstract-algebra
algebraic-number-theory
noncommutative-algebra
function-fields
If a ring element is right-invertible, but not left-invertible, then it has infinitely many right-inverses. [duplicate]
abstract-algebra
ring-theory
inverse
noncommutative-algebra
Subring generated by idempotents
abstract-algebra
ring-theory
noncommutative-algebra
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