Back to Search
Start Over
A short proof for Auslander’s defect formula
- Source :
-
Linear Algebra & its Applications . May2003, Vol. 365, p267. 4p. - Publication Year :
- 2003
-
Abstract
- We give a short proof of Auslander’s formula relating the covariant and the contravariant defect of a short exact sequence in a module category. An immediate consequence is the classical Auslander–Reiten formula relating Ext and Hom. [Copyright &y& Elsevier]
- Subjects :
- *HOMOLOGY theory
*ALGEBRA
Subjects
Details
- Language :
- English
- ISSN :
- 00243795
- Volume :
- 365
- Database :
- Academic Search Index
- Journal :
- Linear Algebra & its Applications
- Publication Type :
- Academic Journal
- Accession number :
- 9441348
- Full Text :
- https://doi.org/10.1016/S0024-3795(02)00481-0