Exact sequences for mixed coproduct/tensor-product ring constructions
Exact sequences for mixed coproduct/tensor-product ring constructions
To a commutative ring K, and a family of K-algebras indexed by the vertex set of a graph, we associate a K-algebra obtained by a mixture of coproduct and tensor product constructions .For this , and related constructions, we give exact sequences and deduc e homological properties .1 .Int roduct …