An Algorithm for the Traverso-Swan theorem on seminormal rings

pdf file.
with Sami Barhoumi
Journal of Algebra. 320 (2008), 1531--1542.

Abstract :

We give an algorithm for an explicit implementation of Traverso-Swan's theorem, saying that a reduced ring A is seminormal if and only if the canonical map from Pic A to Pic A[x] is an isomorphism.