Simplifications of the Ostrowski upper bounds for the spectral

نویسندگان

  • Chaoqian Li
  • Baohua Hu
  • Yaotang Li
  • CHAOQIAN LI
  • BAOHUA HU
  • YAOTANG LI
  • Daniel B. Szyld
چکیده

A.M. Ostrowski in 1951 gave two well-known upper bounds for the spectral radius of nonnegative matrices. However, the bounds are not of much practical use because they all involve a parameter α in the interval [0, 1], and it is not easy to decide the optimum value of α. In this paper, their equivalent forms which can be computed with the entries of matrix and without having to minimize the expressions of the bounds over all possible values of α ∈ [0, 1], are given.

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تاریخ انتشار 2017