English

On Superstable Expansions of Free Abelian Groups

Logic 2018-05-23 v4

Abstract

We prove that (Z,+,0)(\Z,+,0) has no proper superstable expansions of finite Lascar rank. Nevertheless, this structure equipped with a predicate defining powers of a given natural number is superstable of Lascar rank ω\omega. Additionally, our methods yield other superstable expansions such as (Z,+,0)(\Z,+,0) equipped with the set of factorial elements.

Keywords

Cite

@article{arxiv.1405.0568,
  title  = {On Superstable Expansions of Free Abelian Groups},
  author = {Daniel Palacin and Rizos Sklinos},
  journal= {arXiv preprint arXiv:1405.0568},
  year   = {2018}
}