[PDF][PDF] Homotopy, the codimension 2 correspondence and sections of rank 2 vector bundles

R Sridharan - Journal of Algebra, 1995 - core.ac.uk
Let A be a commutative neotherian ring with dim A= n. Let P be a projective A-module of
rank n having trivial determinant. In [RS], assum-ing that n= 3, we proved certain results …

On the left perpendicular category of the modules of finite projective dimension

T Araya, KI Iima, R Takahashi - Communications in Algebra, 2012 - Taylor & Francis
In this article, we characterize several properties of commutative noetherian local rings in
terms of the left perpendicular category of the category of finitely generated modules of finite …

Homological dimensions of rigid modules

O Celikbas, M Gheibi, MR Zargar, A Sadeghi - arXiv preprint arXiv …, 2014 - arxiv.org
We obtain various characterizations of commutative Noetherian local rings $(R,\fm) $ in
terms of homological dimensions of certain finitely generated modules. For example, we …

Linkage of modules with respect to a semidualizing module

MT Dibaei, A Sadeghi - Pacific Journal of Mathematics, 2018 - msp.org
The notion of linkage with respect to a semidualizing module is introduced. This notion
enables us to study the theory of linkage for modules in the Bass class with respect to a …

The homotopy category of complexes of projective modules

P Jørgensen - Advances in Mathematics, 2005 - Elsevier
The homotopy category of complexes of projective modules Page 1 Advances in Mathematics
193 (2005) 223–232 www.elsevier.com/locate/aim The homotopy category of complexes of …

Classifying projective modules over some semilocal rings

N Dubrovin, G Puninski - Journal of Algebra and its Applications, 2007 - World Scientific
CLASSIFYING PROJECTIVE MODULES OVER SOME SEMILOCAL RINGS Page 1 September
12, 2007 10:10 WSPC/171-JAA 00252 Journal of Algebra and Its Applications Vol. 6, No. 5 …

Weak injective covers and dimension of modules

Z Gao, Z Huang - Acta Mathematica Hungarica, 2015 - Springer
For a ring R, we prove that all left R-modules have weak injective covers and weak injective
preenvelopes. Then we characterize the right weak injective dimension of modules in terms …

Bicommutators of cofaithful, fully divisible modules

JA Beachy - Canadian Journal of Mathematics, 1971 - cambridge.org
We define below a notion for modules which is dual to that of faithful, and a notion of “fully
divisible” which generalizes that of injectivity. We show that the bicommutator of a cofaithful …

Homological Dimension of G-Matlis dual modules over semilocal rings

C Fuchang, W Mingyi - Communications in Algebra, 1993 - Taylor & Francis
A commutative ring with unit is called a aemilocal ring if it has only finitely many maximal
ideals; if it has a unique one, re call it a local ring. In thie paper, R will denote a commutative …

Selforthogonal modules with finite injective dimension III

Z Huang - Algebras and representation theory, 2009 - Springer
Let R be a left Noetherian ring, S a right Noetherian ring and RU a generalized tilting
module with S= End (RU). We give some equivalent conditions that the injective dimension …