A short proof for Auslander's defect formula
Krause H (2003)
Linear Algebra and its Applications 365: 267-270.
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Einrichtung
Abstract / Bemerkung
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. (C) 2002 Elsevier Science Inc. All rights reserved.
Stichworte
short exact sequence;
contravariant defect;
Auslander-Reiten formula;
dual of transpose;
covariant defect
Erscheinungsjahr
2003
Zeitschriftentitel
Linear Algebra and its Applications
Band
365
Seite(n)
267-270
ISSN
0024-3795
Page URI
https://pub.uni-bielefeld.de/record/1612091
Zitieren
Krause H. A short proof for Auslander's defect formula. Linear Algebra and its Applications. 2003;365:267-270.
Krause, H. (2003). A short proof for Auslander's defect formula. Linear Algebra and its Applications, 365, 267-270. https://doi.org/10.1016/S0024-3795(02)00481-0
Krause, Henning. 2003. “A short proof for Auslander's defect formula”. Linear Algebra and its Applications 365: 267-270.
Krause, H. (2003). A short proof for Auslander's defect formula. Linear Algebra and its Applications 365, 267-270.
Krause, H., 2003. A short proof for Auslander's defect formula. Linear Algebra and its Applications, 365, p 267-270.
H. Krause, “A short proof for Auslander's defect formula”, Linear Algebra and its Applications, vol. 365, 2003, pp. 267-270.
Krause, H.: A short proof for Auslander's defect formula. Linear Algebra and its Applications. 365, 267-270 (2003).
Krause, Henning. “A short proof for Auslander's defect formula”. Linear Algebra and its Applications 365 (2003): 267-270.
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