Samir, Basim Strong amalgamation in systems of varieties. (English) Zbl 1351.03063 Commun. Algebra 44, No. 3, 1227-1235 (2016). MSC: 03G15 PDFBibTeX XMLCite \textit{B. Samir}, Commun. Algebra 44, No. 3, 1227--1235 (2016; Zbl 1351.03063) Full Text: DOI
Samir, Basim Varieties of algebras without the amalgamation property. (English) Zbl 1326.03078 Commun. Algebra 43, No. 6, 2425-2436 (2015). MSC: 03G15 08B99 PDFBibTeX XMLCite \textit{B. Samir}, Commun. Algebra 43, No. 6, 2425--2436 (2015; Zbl 1326.03078) Full Text: DOI
Bremner, Murray R.; El Bachraoui, Mohamed On the semigroup algebra of binary relations. (English) Zbl 1213.20064 Commun. Algebra 38, No. 9, 3499-3505 (2010). MSC: 20M20 20M25 15B34 03G15 16S36 20M30 PDFBibTeX XMLCite \textit{M. R. Bremner} and \textit{M. El Bachraoui}, Commun. Algebra 38, No. 9, 3499--3505 (2010; Zbl 1213.20064) Full Text: DOI