Reconstructing a matrix from a partial sampling of Pareto eigenvalues

  • Authors:
  • Pedro Gajardo;Alberto Seeger

  • Affiliations:
  • Departamento de Matemática, Universidad Técnica Federico Santa María, Valparaíso, Chile;Department of Mathematics, University of Avignon, Avignon, France 84000

  • Venue:
  • Computational Optimization and Applications
  • Year:
  • 2012

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Abstract

Let 驴={驴 1,驴,驴 p } be a given set of distinct real numbers. This work deals with the problem of constructing a real matrix A of order n such that each element of 驴 is a Pareto eigenvalue of A, that is to say, for all k驴{1,驴,p} the complementarity system $$x\geq \mathbf{0}_n,\quad Ax-\lambda_k x\geq \mathbf{0}_n,\quad \langle x, Ax-\lambda_k x\rangle = 0$$ admits a nonzero solution x驴驴 n .