Generating non noetherian modules constructively
Artikel i vetenskaplig tidskrift, 2004
In , Heitmann gives a proof of a Basic Element Theorem, which has as corollaries some versions of the "Splitting-off" theorem of Serre and the Forster-Swan theorem in a non Noetherian setting. We give elementary and constructive proofs of such results. We introduce also a new notion of dimension for rings, which is only implicit in  and we present a generalisation of the Forster-Swan theorem, answering a question left open in .