Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4595698 | Journal of Pure and Applied Algebra | 2017 | 21 Pages |
Abstract
We investigate how the higher almost split sequences over a tensor product of algebras are related to those over each factor. Herschend and Iyama give in [6] a criterion for when the tensor product of an n-representation finite algebra and an m -representation finite algebra is (n+m)(n+m)-representation finite. In this case we give a complete description of the higher almost split sequences over the tensor product by expressing every higher almost split sequence as the mapping cone of a suitable chain map and using a natural notion of tensor product for chain maps.
Related Topics
Physical Sciences and Engineering
Mathematics
Algebra and Number Theory
Authors
Andrea Pasquali,