Relative projectivity and extendibility of Auslander-Reiten sequences

K Uno - 1988 - projecteuclid.org
Let kG be the group algebra of a finite group G over a field k of characteristic p. For any non-
projective indecomposable right &G-module W, there is a so called Auslander-Reiten …

[引用][C] On vertices of Auslander-Reiten sequences

T Okuyama, K Uno - Bulletin of the London Mathematical …, 1990 - academic.oup.com
Let kG be the group algebra of a finite group G over a field k of characteristic p, where p is a
prime. In his paper [6], Green defined relative projectivity for short exact sequences of group …

Determination of some almost split sequences in morphism categories

R Hafezi, H Eshraghi - Journal of Algebra, 2023 - Elsevier
Almost split sequences lie in the heart of Auslander-Reiten theory. This paper deals with the
structure of almost split sequences with certain ending terms in the morphism category of an …

On the sequences induced from Auslander-Reiten sequences

K Uno - 1987 - projecteuclid.org
Let kG be the group algebra of a finite group G over an algebraically closed field k of
characteristic py p 4= 0. Fix a normal subgroup N of G and a non-projective indecomposable …

On Auslander-Reiten components for certain group modules

S Kawata - 1993 - projecteuclid.org
Let G be a finite group and ka field of characteristic^>> 0. Let Ts (kG) be the stable
Auslander-Reiten quiver of the group algebra kG. By Webb's theorem, the tree class of a …

On Auslander-Reiten components and simple modules for finite group algebras

S Kawata - 1997 - projecteuclid.org
Let G be a finite group, ka field of characteristic p> 0 and B a block of the group algebra kG.
Let θ be a connected component (AR-component for short) of the stable Auslander-Reiten …

Almost split sequences for complexes of fixed size

R Bautista, MJS Salorio, R Zuazua - Journal of Algebra, 2005 - Elsevier
Let A be an additive k-category, ka commutative artinian ring and n> 1. We denote by Cn (A)
the category of complexes [Formula: see text] in A with Xi= 0 if i∉{1,…, n}. We see that Cn (A) …

[图书][B] Auslander-Reiten theory via Brown representability

H Krause - 1999 - Citeseer
We develop an Auslander-Reiten theory for triangulated categories which is based on
Brown's representability theorem. In a fundamental article [3], Auslander and Reiten …

Induction and Auslander-Reiten sequences over crossed products

T Theohari-Apostolidi, H Vavatsoulas - Formal Power Series and …, 2000 - Springer
The main aim of this paper is to study the Auslander-Reiten sequences in modR* G, the
category of finitely generated left R* G-modules, where R* G is the crossed product of a finite …

[PDF][PDF] The relative Auslander-Reiten theory of modules

CC Xi - preprint, 2005 - math0.bnu.edu.cn
Let A be an Artin algebra. As we know, the construction of the well-known Auslander-Reiten
sequence is based on the natural (A, A)-bimodule A and the induced transpose, where the …