Unary NP-hardness of single-machine scheduling to minimize the total tardiness with deadlines

被引:0
|
作者
Rubing Chen
Jinjiang Yuan
机构
[1] Zhengzhou University,School of Mathematics and Statistics
来源
Journal of Scheduling | 2019年 / 22卷
关键词
Single-machine scheduling; Deadlines; Tardiness; Unary NP-hard;
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摘要
We revisit the classical single-machine scheduling problem to minimize total tardiness with deadlines. The problem is binary NP-hard even without the deadline restrictions. It was reported early in Koulamas and Kyparisis (Eur J Oper Res 133:447–453, 2001) that the exact complexity (unary NP-hardness or pseudo-polynomial-time solvability) of the problem is still open. We show that this problem is unary NP-hard.
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页码:595 / 601
页数:6
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