Let m ≥ 2 be an integer. By using m submodules of a given module, we construct a certain exact sequence, which is a well known short exact sequence when m = 2. As an application, we compute a minimal projective resolution of the Jacobson radical of a tiled order.
@article{bwmeta1.element.bwnjournal-article-doi-10_4064-cm113-2-11, author = {Yosuke Sakai}, title = {An elementary exact sequence of modules with an application to tiled orders}, journal = {Colloquium Mathematicae}, volume = {111}, year = {2008}, pages = {307-318}, zbl = {1169.16004}, language = {en}, url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-cm113-2-11} }
Yosuke Sakai. An elementary exact sequence of modules with an application to tiled orders. Colloquium Mathematicae, Tome 111 (2008) pp. 307-318. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-cm113-2-11/