Väljako, Kristo; Laan, Valdis Morita contexts and unitary ideals of rings. (English) Zbl 1475.16014 Proc. Est. Acad. Sci. 70, No. 2, 122-134 (2021). MSC: 16D90 16D25 PDFBibTeX XMLCite \textit{K. Väljako} and \textit{V. Laan}, Proc. Est. Acad. Sci. 70, No. 2, 122--134 (2021; Zbl 1475.16014) Full Text: DOI
Zhang, Xia; Laan, Valdis Quotients and subalgebras of sup-algebras. (English) Zbl 1336.08005 Proc. Est. Acad. Sci. 64, No. 3, 311-322 (2015). Reviewer: Ivan Chajda (Přerov) MSC: 08C05 06F07 06B23 06D22 08A30 08A35 PDFBibTeX XMLCite \textit{X. Zhang} and \textit{V. Laan}, Proc. Est. Acad. Sci. 64, No. 3, 311--322 (2015; Zbl 1336.08005) Full Text: DOI
Zhang, Xia; Laan, Valdis Injective hulls for posemigroups. (English) Zbl 1332.06047 Proc. Est. Acad. Sci. 63, No. 4, 372-378 (2014). MSC: 06F05 20M50 06F07 20M30 PDFBibTeX XMLCite \textit{X. Zhang} and \textit{V. Laan}, Proc. Est. Acad. Sci. 63, No. 4, 372--378 (2014; Zbl 1332.06047) Full Text: DOI
Laan, Valdis Morita theorems for partially ordered monoids. (English) Zbl 1412.06016 Proc. Est. Acad. Sci. 60, No. 4, 221-237 (2011). MSC: 06F05 20M50 PDFBibTeX XMLCite \textit{V. Laan}, Proc. Est. Acad. Sci. 60, No. 4, 221--237 (2011; Zbl 1412.06016) Full Text: DOI