On the complexity of constructing multiprocessor little-preemptive schedules
Informatics and Automation, Modern problems of mathematics, mechanics, and mathematical physics, Tome 290 (2015), pp. 178-190

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We present a full and correct proof of the fact that the problem of constructing an optimal schedule for the open shop problem with at most $m-3$ preemptions for an $m$‑processor system is NP-hard. We also show that the proof of this result given by E. Shchepin and N. Vakhania in Ann. Oper. Res. 159, 183–213 (2008) is incorrect.
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     author = {E. V. Shchepin},
     title = {On the complexity of constructing multiprocessor little-preemptive schedules},
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     volume = {290},
     year = {2015},
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     url = {http://geodesic.mathdoc.fr/item/TRSPY_2015_290_a14/}
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E. V. Shchepin. On the complexity of constructing multiprocessor little-preemptive schedules. Informatics and Automation, Modern problems of mathematics, mechanics, and mathematical physics, Tome 290 (2015), pp. 178-190. http://geodesic.mathdoc.fr/item/TRSPY_2015_290_a14/