This note points out that three of the facilities layout problems solved by Picone and Wilhelm (Picone, C. J., W. E. Wilhelm. 1984. A perturbation scheme to improve Hillier's solution to the facilities layout problem. Management Sci. 30 1238--1249.) are different from the test problems given in...

Production scheduling problem of style good manufacturer involves seasonal stochastic demands for their goods and limited production capacities. As a result, some production must take place before the selling season starts. The problem can be cast as a stochastic optimal control problem over...

A number of real world processes can be modelled as exponential decay processes. Examples are: machine replacement, oil well extraction, advertising goodwill, repair and cleaning activities, etc.. In this paper we analyze a series of discounted or undiscounted, deterministic or stochastic...

This paper describes a maximum principle for distributed parameter systems, i.e. systems characterized by partial differential equations. The maximum principle is applied to solve the problem of a cattle rancher who must decide the number of cattle in different age groups to be bought and sold...