Checking local optimality in constrained quadratic programming is NP-hard

  • Authors:
  • P. M. Pardalos;G. Schnitger

  • Affiliations:
  • Computer Science Department, The Pennsylvania State University, 333 Whitmore Library, University Park, PA 16802, USA;Computer Science Department, The Pennsylvania State University, 333 Whitmore Library, University Park, PA 16802, USA

  • Venue:
  • Operations Research Letters
  • Year:
  • 1988

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Abstract

In this paper we prove that the problem of checking local optimality for a feasible point and the problem of checking if a local minimum is strict, are NP-hard problems. As a consequence the problem of checking whether a function is locally strictly convex is also NP-hard.