More on three-machine no-idle flow shops

  • Authors:
  • Jerzy Kamburowski

  • Affiliations:
  • Department of Information, Operations and Technology Management, College of Business Administration, The University of Toledo, Toledo, OH

  • Venue:
  • Computers and Industrial Engineering
  • Year:
  • 2004

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Abstract

Recently in this journal Saadani, Guinet, and Moalla [Comput Ind Engng 44 (2003) 425] considered the NP-hard problem of minimizing the makespan in a three-machine no-idle flow shop. We identify a simple network representation of the makespan that provides a better insight into the problem, reveals a certain anomaly resulting from the no-idle condition, and leads to some dominance relations among the machines under which the problem becomes efficiently solvable. Extensions to m-machine no-idle flow shops are also included.