Hartfiel, D. J.; Maxson, C. J.; Plemmons, R. J. A note on Green’s relations on the semigroup \(N_n\). (English) Zbl 0351.20037 Proc. Am. Math. Soc. 60(1976), 11-15 (1977). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 5 Documents MSC: 20M99 Semigroups 15B48 Positive matrices and their generalizations; cones of matrices 20G20 Linear algebraic groups over the reals, the complexes, the quaternions PDFBibTeX XMLCite \textit{D. J. Hartfiel} et al., Proc. Am. Math. Soc. 60, 11--15 (1977; Zbl 0351.20037) Full Text: DOI