Title of article
A short proof for Auslander’s defect formula Original Research Article
Author/Authors
Henning Krause، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2003
Pages
4
From page
267
To page
270
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.
Keywords
Short exact sequence , Contravariant defect , Covariant defect , Dual of transpose , Auslander–Reiten formula
Journal title
Linear Algebra and its Applications
Serial Year
2003
Journal title
Linear Algebra and its Applications
Record number
823895
Link To Document