Journal of Inequalities and Applications (Feb 2016)

A note on the rank inequality for diagonally magic matrices

  • Duanmei Zhou,
  • Qingyou Cai,
  • Xiaoyan Chen

DOI
https://doi.org/10.1186/s13660-016-1013-4
Journal volume & issue
Vol. 2016, no. 1
pp. 1 – 5

Abstract

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Abstract We prove that a positive matrix with all permutation products equal is diagonally equivalent to J, the all-1s matrix. Then we give a simple proof of the rank inequality for diagonally magic matrices (J. Inequal. Appl. 2015:318, 2015).

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