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math.RA2020
Divisibility of LCM matrices by Totally nonnegative GCD matrices
Peeraphat Gatephan, Kijti Rodtes
In this paper, we show that all totally nonnegative GCD matrices are always divisors of the corresponding LCM matrices in the ring . We also introduce \…
math.RA2020
A class of normal dilation matrices affirming the Marcus-de Oliveira conjecture
Kijti Rodtes
In this article, we prove a class of normal dilation matrices affirming the Marcus-de Oliveira conjecture.