| Article ID: | iaor20032520 |
| Country: | United States |
| Volume: | 116 |
| Issue: | 2 |
| Start Page Number: | 333 |
| End Page Number: | 345 |
| Publication Date: | Feb 2003 |
| Journal: | Journal of Optimization Theory and Applications |
| Authors: | Qi L., Kanzow C., Qi H. |
This paper describes a new technique to find the minimum norm solution of a linear program. The main idea is to reformulate this problem as an unconstrained minimization problem with a convex and smooth objective function. The minimization of this objective function can be carried out by a Newton-type method which is shown to be globally convergent. Furthermore, under certain assumptions, this Newton-type method converges in a finite number of iterations to the minimum norm solution of the underlying linear program.