Edmond W. H. Lee, Advances in the Theory of Varieties of Semigroups, 2023, 1
Mark V. Sapir, Combinatorial Algebra: Syntax and Semantics, 2014, 85
Meng Gao, Wen Ting Zhang, Yan Feng Luo, “A non-finitely based involution semigroup of order five”, Algebra Univers., 81, № 3, 2020, 31
Edmond W. H. Lee, “Intervals of varieties of involution semigroups with contrasting reduct intervals”, Boll Unione Mat Ital, 15, № 4, 2022, 527
Jian Rong Li, Wen Ting Zhang, Yan Feng Luo, “On the finite basis problem for the variety generated by all n-element semigroups”, Algebra Univers., 73, № 3-4, 2015, 225
Edmond W.H. Lee, “Finitely based finite involution semigroups with non-finitely based reducts”, Quaestiones Mathematicae, 39, № 2, 2016, 217
Edmond W. H. Lee, “Variety Membership Problem for Two Classes of Non-Finitely Based Semigroups”, Wuhan Univ. J. Nat. Sci., 23, № 4, 2018, 323
Edmond W. H. Lee, Wen Ting Zhang, “Finite basis problem for semigroups of order six”, LMS J. Comput. Math., 18, № 1, 2015, 1
Edmond W. H. Lee, “Equational theories of unstable involution semigroups”, ERA-MS, 24, 2017, 10
Edmond W. H. Lee, Jian Rong Li, Wen Ting Zhang, “Minimal non-finitely based semigroups”, Semigroup Forum, 85, № 3, 2012, 577