scholarly journals Injective dimension of generalized matrix rings

1984 ◽  
Vol 8 (2) ◽  
pp. 339-352
Author(s):  
Kazunori Sakano
2011 ◽  
Vol 10 (02) ◽  
pp. 191-200 ◽  
Author(s):  
S. AL-NOFAYEE ◽  
S. K. NAUMAN

In this note, derivations on Morita rings (generalized matrix rings) are introduced and generalized derivations on rings are proved to be Morita invariant without involvement of any homology theory.


1995 ◽  
Vol 18 (2) ◽  
pp. 311-316 ◽  
Author(s):  
David G. Poole ◽  
Patrick N. Stewart

An associative ringRwith identity is a generalized matrix ring with idempotent setEifEis a finite set of orthogonal idempotents ofRwhose sum is1. We show that, in the presence of certain annihilator conditions, such a ring is semiprime right Goldie if and only ifeReis semiprime right Goldie for alle∈E, and we calculate the classical right quotient ring ofR.


2011 ◽  
Vol 202 (1) ◽  
pp. 1-8 ◽  
Author(s):  
Aleksandr V Budanov

2017 ◽  
Vol 16 (04) ◽  
pp. 1750067 ◽  
Author(s):  
Gary F. Birkenmeier ◽  
Donald D. Davis

Generalized matrix rings are ubiquitous in algebra and have relevant applications to analysis. A ring is quasi-Baer (respectively, right p.q.-Baer) in case the right annihilator of any ideal (respectively, principal ideal) is generated by an idempotent. A ring is called biregular if every principal ideal is generated by a central idempotent. In this paper, we identify the ideals and principal ideals, the annihilators of ideals, and the central and semi-central idempotents of a generalized [Formula: see text] matrix ring. We characterize the generalized matrix rings that are quasi-Baer, right p.q.-Baer, prime, and biregular. We provide examples to illustrate these concepts.


2008 ◽  
Vol 47 (4) ◽  
pp. 258-262 ◽  
Author(s):  
P. A. Krylov

2019 ◽  
Vol 19 (01) ◽  
pp. 2050018
Author(s):  
Gary F. Birkenmeier ◽  
Donald D. Davis

Recall that a module [Formula: see text] is FI-extending if every fully invariant submodule is essential in a direct summand of [Formula: see text]. Let [Formula: see text] be a generalized matrix ring, where [Formula: see text] and [Formula: see text] are rings and [Formula: see text] and [Formula: see text] are bimodules. In this paper, we investigate necessary and/or sufficient conditions on [Formula: see text], [Formula: see text], [Formula: see text], and [Formula: see text] for [Formula: see text] to be FI-extending.


2014 ◽  
Vol 42 (9) ◽  
pp. 3883-3894 ◽  
Author(s):  
Qinghe Huang ◽  
Gaohua Tang ◽  
Yiqiang Zhou

Author(s):  
G. F. Birkenmeier ◽  
B. J. Heider

1984 ◽  
Vol 12 (16) ◽  
pp. 2055-2065 ◽  
Author(s):  
Kazunori Sakano

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