Tan, Zhiyi; Chen, Yong; Zhang, An - In: International Journal of Production Economics 146 (2013) 1, pp. 293-299
This paper considers the scheduling problems with the objective of minimizing the total completion time on two parallel identical machines with given unavailable periods. The jobs are assumed to be nonresumable. If there is one unavailable period on one of the two machines, we prove that SPT has...