Journal of Combinatorial Optimization

, Volume 24, Issue 3, pp 229–239 | Cite as

Approximation schemes for two-machine flow shop scheduling with two agents

  • Wenchang Luo
  • Lin Chen
  • Guochuan ZhangEmail author


In this paper we consider two-machine flow shop scheduling with two agents. Two models are investigated. One is the weighted-sum optimization model and the other is the constrained optimization model. For the former, we show that it is weakly NP-hard and propose a fully polynomial time approximation scheme. For the latter, we also show the problem is weakly NP-hard. With violating the constraint a factor of ε a fully polynomial time approximation scheme is provided.


Scheduling with two agents Flow shop Approximation scheme 


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Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  1. 1.Department of MathematicsZhejiang UniversityHangzhouChina
  2. 2.College of Computer ScienceZhejiang UniversityHangzhouChina

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