(1) Professor, Department of Industrial Engineering and Operations Research, Columbia University, New York City, NY, USA;(2) Ashbel Smith Professor, School of Management, University of Texas at Dallas, Richardson, Texas, USA
Abstract:
We generalize the concept of K-convexity to an n-dimensional Euclidean space. The resulting concept of
-convexity is useful in addressing production and inventory problems where there are individual product setup costs and/or
joint setup costs. We derive some basic properties of
-convex functions. We conclude the paper with some suggestions for future research.
Support from Columbia University and University of Texas at Dallas is gratefully acknowledged. Helpful comments from Qi Feng
are appreciated.