Journal of Jishou University(Natural Sciences Edition) ›› 2020, Vol. 41 ›› Issue (5): 5-8.DOI: 10.13438/j.cnki.jdzk.2020.05.002

• Mathematics • Previous Articles     Next Articles

Lower Bound for the Smallest Singular Value of H-Matrices

FU Youming   

  1. (Department of Information Engineering, Sanming University, Sanming 365004, Fujian China)
  • Online:2020-09-25 Published:2021-02-04

Abstract: A lower bound for the smallest singular value of a Nekrasov matrix is derived and then the lower bound is applied to H-matrices. The numerical results show that the new estimation is effective.

Key words: Nekrasov matrix, H-matrices, the smallest singular value, lower bound

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