Dr (JJ) Johann Wannenburg

Tel.: +27 12 420 2858

E-mail: [email protected]

Office: Mathematics 1-44

Position: Lecturer

Academic qualification: PhD (University of Pretoria)

Research Interests:  Universal algebra and Abstract Algebraic Logic


Publications in the past five years

Journal articles

Wannenburg JJ and Raftery JG, Semilinear De Morgan monoids and epimorphisms. Algebra Universalis 85(1)(2024), Article 10, 34 pages.

Moraschini T, Wannenburg JJ and Yamamoto K (forthcoming), Elementary Equivalence in Positive Logic Via Prime Products. Journal of Symbolic Logic:1-18; see https://doi.org/10.1017/jsl.2023.50

Moraschini T, Raftery JG, Wannenburg JJ, Epimorphisms in Varieties of Subidempotent Residuated Structures. Algebra Universalis 82(6)(2021), 26 pp.

 Moraschini T, Raftery JG, Wannenburg JJ, Singly Generated Quasivarieties and Residuated Structures. Mathematical Logic Quarterly 66(2)(2020), 150–172
 Moraschini T, Raftery JG, Wannenburg JJ, Epimorphisms, Definability and Cardinalities. Studia Logica 108(2020), 255–275
Moraschini T, Raftery JG, Wannenburg JJ, Epimorphisms, Varieties of De Morgan Monoids: Covers of Atoms. Review of Symbolic Logic 13(2)(2020), 338–374
Moraschini T, Wannenburg JJ, Epimorphism Surjectivity in Varieties of Heyting Algebras. Annals of Pure and Applied Logic 171(9)(2020); 102824.

Moraschini T, Raftery JG, Wannenburg JJ, Varieties of De Morgan Monoids: Minimality and Irreducible Algebras. Journal of Pure and Applied Algebra 223(7)(2019), 2780–2803
Sedlár I, Wannenburg.JJ, Embedding Kozen-Tiuryn Logic into Residuated One-Sorted Kleene Algebra with Tests. In Logic, Language, Information, and Computation, edited by Agata Ciabattoni, Elaine Pimentel, and Ruy J. G. B. de Queiroz, 221–36. Lecture Notes in Computer Science. Cham: Springer International Publishing. https://doi.org/10.1007/978-3-031-15298-6_14.

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