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New posts in algebras
Can non-isomorphic abelian groups have isomorphic endomorphism rings?
ring-theory
algebras
What is an example of a smooth function in $C^\infty(\mathbb{R}^2)$ which is not contained in $C^\infty(\mathbb{R})\otimes C^\infty(\mathbb{R})$
differential-geometry
tensor-products
smooth-manifolds
algebras
What is an $R$-algebra?
abstract-algebra
ring-theory
modules
definition
algebras
Are all finite-dimensional algebras of a fixed dimension over a field isomorphic to one another?
abstract-algebra
ring-theory
vector-spaces
algebras
ring-isomorphism
Graded algebras and symbols
abstract-algebra
group-homomorphism
algebras
morphism
graded-algebras
Simple question about finitely generated algebras
abstract-algebra
finitely-generated
algebras
integral-extensions
What is the difference between a Ring and an Algebra?
abstract-algebra
ring-theory
definition
algebras
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