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Journal of Global Optimization

, Volume 53, Issue 3, pp 475–495 | Cite as

Extremal values of global tolerances in combinatorial optimization with an additive objective function

  • Vyacheslav V. Chistyakov
  • Boris I. GoldengorinEmail author
  • Panos M. Pardalos
Article

Abstract

The currently adopted notion of a tolerance in combinatorial optimization is defined referring to an arbitrarily chosen optimal solution, i.e., locally. In this paper we introduce global tolerances with respect to the set of all optimal solutions, and show that the assumption of nonembededdness of the set of feasible solutions in the provided relations between the extremal values of upper and lower global tolerances can be relaxed. The equality between globally and locally defined tolerances provides a new criterion for the multiplicity (uniqueness) of the set of optimal solutions to the problem under consideration.

Keywords

Combinatorial optimization problem Additive objective function Extremal values of tolerances 

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Copyright information

© Springer Science+Business Media, LLC. 2012

Authors and Affiliations

  • Vyacheslav V. Chistyakov
    • 1
    • 2
  • Boris I. Goldengorin
    • 1
    • 2
    Email author
  • Panos M. Pardalos
    • 2
    • 3
  1. 1.Department of Applied Mathematics and Computer ScienceNational Research University Higher School of EconomicsNizhny NovgorodRussian Federation
  2. 2.Laboratory of Algorithms and Technologies for Networks AnalysisNational Research University Higher School of EconomicsNizhny NovgorodRussian Federation
  3. 3.Department of Industrial and Systems Engineering, Center for Applied OptimizationUniversity of FloridaGainesvilleUSA

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