## Finding a best approximation pair of points for two polyhedra

Given two disjoint convex polyhedra, we look for a best approximation pair relative to them, i.e., a pair of points, one in each polyhedron, attaining the minimum distance between the sets. Cheney and Goldstein showed that alternating projections onto the two sets, starting from an arbitrary point, generate a sequence whose two interlaced subsequences converge … Read more

## An improved Kalai-Kleitman bound for the diameter of a polyhedron

Kalai and Kleitman established the bound \$n^{\log(d) + 2}\$ for the diameter of a \$d\$-dimensional polyhedron with \$n\$ facets. Here we improve the bound slightly to \$(n-d)^{\log(d)}\$. Citation School of Operations Research and Information Engineering, Cornell University, Ithaca NY, USA, February 2014 Article Download View An improved Kalai-Kleitman bound for the diameter of a polyhedron

## Separation of convex polyhedral sets with uncertain data

This paper is a contribution to the interval analysis and separability of convex sets. Separation is a familiar principle and is often used not only in optimization theory, but in many economic applications as well. In real problems input data are usually not known exactly. For the purpose of this paper we assume that data … Read more