For abelian groups see Def. 6 in Melnikov, Alexander G. (2010). Computable ordered abelian groups and fields. Programs, proofs, processes. 6th conference on computability in Europe, CiE 2010. Lecture Notes in Computer Science. Vol. 6158. Ponta Delgada, Azores, Portugal: Springer. pp. 321–330.
Witte, Dave (1994). "Arithmetic groups of higher \(\mathbb{Q}\)-rank cannot act on \(1\)-manifolds". Proceedings of the American Mathematical Society. 122 (2): 333–340. doi:10.2307/2161021. JSTOR2161021. Zbl0818.22006.
Witte, Dave (1994). "Arithmetic groups of higher \(\mathbb{Q}\)-rank cannot act on \(1\)-manifolds". Proceedings of the American Mathematical Society. 122 (2): 333–340. doi:10.2307/2161021. JSTOR2161021. Zbl0818.22006.
Witte, Dave (1994). "Arithmetic groups of higher \(\mathbb{Q}\)-rank cannot act on \(1\)-manifolds". Proceedings of the American Mathematical Society. 122 (2): 333–340. doi:10.2307/2161021. JSTOR2161021. Zbl0818.22006.