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Journals and Conferences
Conjugate function theory is used to develop dual programs for nonseparable convex programs involving the square root function. This function arises naturally in finance when one measures the risk of a portfolio by its variance– covariance matrix, in stochastic programming under chance constraints and in location theory.
This study analyzes tradeoffs online grocers face in their fulfillment strategy. Brick and click grocers initially favor fulfillment from stores rather than distribution centers. However, store fulfillment is vulnerable to congestion and “trolley rage” when pickers of online orders get in the way of traditional shoppers. Although fulfillment from… (More)
In this paper we develop tactical and strategic models for assignments of customers to satellite channels. We solve this problem using mixed integer-linear programming, and study the managerial impacts of our models. As a managerial tool, the optimal placement of customer channels to minimize transponder re-balancing was found to have a real and observable… (More)