Shao, Haiqin; Guo, Liqin The extension of cancellative partial order and quotient-ordered homomorphism of cancellative partially ordered semigroups. (Chinese. English summary) Zbl 1374.06039 J. Zhejiang Univ., Sci. Ed. 43, No. 5, 512-516, 536 (2016). MSC: 06F05 20M10 PDF BibTeX XML Cite \textit{H. Shao} and \textit{L. Guo}, J. Zhejiang Univ., Sci. Ed. 43, No. 5, 512--516, 536 (2016; Zbl 1374.06039) Full Text: DOI OpenURL
Shao, Haiqin; Xue, Zhanjun; Lei, Zhenya On extensions of partial orders of partially ordered semigroups. (Chinese. English summary) Zbl 1199.06058 Pure Appl. Math. 24, No. 4, 730-735 (2008). MSC: 06F05 PDF BibTeX XML Cite \textit{H. Shao} et al., Pure Appl. Math. 24, No. 4, 730--735 (2008; Zbl 1199.06058) OpenURL
Shao, Haiqin On extensions of partial orders of partially ordered semirings. (Chinese. English summary) Zbl 1150.06321 J. Ningxia Univ., Nat. Sci. Ed. 28, No. 4, 293-296 (2007). MSC: 06F25 20M25 PDF BibTeX XML Cite \textit{H. Shao}, J. Ningxia Univ., Nat. Sci. Ed. 28, No. 4, 293--296 (2007; Zbl 1150.06321) OpenURL
Kehayopulu, Niovi; Tsingelis, Michael A note on semi-pseudoorders in semigroups. (English) Zbl 1041.06006 Lobachevskii J. Math. 13, 51-55 (2003). Reviewer: H. Mitsch (Wien) MSC: 06F05 20M10 PDF BibTeX XML Cite \textit{N. Kehayopulu} and \textit{M. Tsingelis}, Lobachevskii J. Math. 13, 51--55 (2003; Zbl 1041.06006) Full Text: EuDML EMIS OpenURL