English

The diagonalizable nonnegative inverse eigenvalue problem

Combinatorics 2017-01-31 v1

Abstract

In this paper we prove that the SNIEP \neq DNIEP, i.e. the symmetric and diagonalizable nonnegative inverse eigenvalue problems are different. We also show that the minimum t>0t>0 for which (3+t,3t,2,2,2)(3+t,3-t,-2,-2,-2) is realizable by a diagonalizable matrix is t=1t=1, and we distinguish diagonalizably realziable lists from general realizable lists using the Jordan Normal Form

Cite

@article{arxiv.1701.08651,
  title  = {The diagonalizable nonnegative inverse eigenvalue problem},
  author = {Anthony G Cronin and Thomas J Laffey},
  journal= {arXiv preprint arXiv:1701.08651},
  year   = {2017}
}

Comments

11 pages