Group: sci.op-research
From: "sam.b"
Date: Wednesday, March 26, 2008 5:02 AM
Subject: Issue/question with Column Generation

How to explain that a new entering variable with negative reduced cost
has still a negative reduced cost once it's in the basis ? Is it a
kind of degeneracy ? Because in this case the same column will be
selected in the next iteration. Simplex problem ?
Thank you.