Trch, Milan Groupoids and the associative law. VII: Semigroups distance of SH-groupoids. (English) Zbl 1150.20047 Acta Univ. Carol., Math. Phys. 47, No. 1, 57-63 (2006). MSC: 20N02 05B15 PDFBibTeX XMLCite \textit{M. Trch}, Acta Univ. Carol., Math. Phys. 47, No. 1, 57--63 (2006; Zbl 1150.20047) Full Text: EuDML
Ježek, Jaroslav; Kepka, Tomáš Selfdistributive groupoids. D1: Left distributive semigroups. (English) Zbl 1150.20046 Acta Univ. Carol., Math. Phys. 47, No. 1, 15-56 (2006). MSC: 20N02 20M99 08B15 PDFBibTeX XMLCite \textit{J. Ježek} and \textit{T. Kepka}, Acta Univ. Carol., Math. Phys. 47, No. 1, 15--56 (2006; Zbl 1150.20046) Full Text: EuDML
Flaška, Václav; Kepka, Tomáš Commutative zeropotent semigroups. (English) Zbl 1145.20321 Acta Univ. Carol., Math. Phys. 47, No. 1, 3-14 (2006). MSC: 20M14 20M05 PDFBibTeX XMLCite \textit{V. Flaška} and \textit{T. Kepka}, Acta Univ. Carol., Math. Phys. 47, No. 1, 3--14 (2006; Zbl 1145.20321) Full Text: EuDML