Detecting �dense� columns in linear programs for interior point methods.
(Working paper of the Laboratory of Operations Research and Decision Systems. (LORDS)WP05-5.)
Advanced preprocessing techniques for linear and quadratic programming. (Working paper of the Laboratory of Operations Research and Decision Systems (LORDS) WP 2002-6)
On the Cholesky factorization in interior point methods. (Working paper of the Laboratory of Operations Research and Decision Systems (LORDS) WP 2002-5)