Long, Dongyang A language whose syntactic monoid is nilpotent. (Chinese. English summary) Zbl 0896.20041 Acta Sci. Nat. Univ. Sunyatseni 35, No. 1, 12-16 (1996). MSC: 20M35 68Q45 PDFBibTeX XMLCite \textit{D. Long}, Acta Sci. Nat. Univ. Sunyatseni 35, No. 1, 12--16 (1996; Zbl 0896.20041)
Long, Dongyang Green’s relations on \(\pi\)-regular semigroups. (Chinese. English summary) Zbl 0830.20085 Acta Sci. Nat. Univ. Sunyatseni 33, No. 3, 110-113 (1994). MSC: 20M17 20M15 PDFBibTeX XMLCite \textit{D. Long}, Acta Sci. Nat. Univ. Sunyatseni 33, No. 3, 110--113 (1994; Zbl 0830.20085)
Long, Dongyang On semilattice decompositions of eventually regular semigroups with permutation identities. (Chinese. English summary) Zbl 0768.20026 Acta Sci. Nat. Univ. Sunyatseni 31, No. 1, 110-112 (1992). MSC: 20M10 20M05 20M17 PDFBibTeX XMLCite \textit{D. Long}, Acta Sci. Nat. Univ. Sunyatseni 31, No. 1, 110--112 (1992; Zbl 0768.20026)
Long, Dongyang Some results on an open problem. (Chinese. English summary) Zbl 0709.16020 Acta Sci. Nat. Univ. Sunyatseni 29, No. 2, 123-124 (1990). MSC: 16U70 16W20 16P10 PDFBibTeX XMLCite \textit{D. Long}, Acta Sci. Nat. Univ. Sunyatseni 29, No. 2, 123--124 (1990; Zbl 0709.16020)