Some scheduling problems with deteriorating jobs and learning effects

This paper considers some scheduling problems with deteriorating jobs and learning effects. The following objective functions are considered: the makespan, the total completion times, and the total absolute differences in completion times. Several polynomial time algorithms are proposed to optimally solve the single-machine scheduling problems. Finally, we show that several special cases of the flowshop scheduling problems remain polynomially solvable under the proposed model. (C) 2009 Published by Elsevier Ltd.