A note on minimum-dummy-activities PERT networks
Marian Mrozek (1984)
RAIRO - Operations Research - Recherche Opérationnelle
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Displaying similar documents to “More on the tournament equilibrium set”
A note on minimum-dummy-activities PERT networks
On the hardness of approximating some NP-optimization problems related to minimum linear ordering problem
Sounaka Mishra, Kripasindhu Sikdar (2001)
RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications
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We study hardness of approximating several minimaximal and maximinimal NP-optimization problems related to the minimum linear ordering problem (MINLOP). MINLOP is to find a minimum weight acyclic tournament in a given arc-weighted complete digraph. MINLOP is APX-hard but its unweighted version is polynomial time solvable. We prove that MIN-MAX-SUBDAG problem, which is a generalization of MINLOP and requires to find a minimum cardinality maximal acyclic subdigraph of a given digraph,...
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Necessary conditions are found for a Cantor subset of the circle to be minimal for some -diffeomorphism. These conditions are not satisfied by the usual ternary Cantor set.
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