1. Extreme preservers of maximal column rank inequalities of matrix sums over semirings Creator: Song, Seok-Zun and Park, Kwon-Ryong Format: bez média and svazek Type: model:article and TEXT Subject: linear operator, rank inequality, and maximal column rank Language: English Description: We characterize linear operators that preserve sets of matrix ordered pairs which satisfy extreme properties with respect to maximal column rank inequalities of matrix sums over semirings. Rights: http://creativecommons.org/publicdomain/mark/1.0/ and policy:public