On minimization on Stiefel manifolds (revised version). (Working paper of the Laboratory of Operations Research and Decision Systems, (LORDS) WP-2001-5.)
A geometric proof of the van der Waerden theorem based on optimization theory. (Working paper of the Laboratory of Operations Research and Decision Systems, (LORDS) WP-2001-9.0
Locally adaptive image processing based on PDE and non-PDE related diffusion models. ( Research report of the Analogical and Neural Computing Laboratory DNS-3-2001)