It is shown that any left module A over a ring R can be written as the
intersection of a downward directed system of injective submodules of an
injective module; equivalently, as an inverse limit of one-to-one homomorphisms
of injectives. If R is left Noetherian, A can also be written as the inverse
limit of a system of surjective homomorphisms of injectives.
Some questions are raised.
Publié le : 2011-04-15
Classification:
Mathematics - Rings and Algebras,
16D50, 18A30 (Primary), 13C11, 16D90 (Secondary)
@article{1104.3173,
author = {Bergman, George M.},
title = {Every module is an inverse limit of injective modules},
journal = {arXiv},
volume = {2011},
number = {0},
year = {2011},
language = {en},
url = {http://dml.mathdoc.fr/item/1104.3173}
}
Bergman, George M. Every module is an inverse limit of injective modules. arXiv, Tome 2011 (2011) no. 0, . http://gdmltest.u-ga.fr/item/1104.3173/