https://en.wikipedia.org/wiki/Free_product_of_associative_algebras
그게 텐서곱일걸
아님
These maps make the tensor product the coproduct in the category of commutative R-algebras.
https://en.m.wikipedia.org/wiki/Tensor_product_of_algebras
noncommutative 일때도 비슷한 상황이지 않을까
https://en.wikipedia.org/wiki/Free_product_of_associative_algebras
그게 텐서곱일걸
아님
These maps make the tensor product the coproduct in the category of commutative R-algebras.
https://en.m.wikipedia.org/wiki/Tensor_product_of_algebras
noncommutative 일때도 비슷한 상황이지 않을까