English

Pseudo-exponential maps, variants, and quasiminimality

Logic 2018-06-20 v3

Abstract

We give a construction of quasiminimal fields equipped with pseudo-analytic maps, generalising Zilber's pseudo-exponential function. In particular we construct pseudo-exponential maps of simple abelian varieties, including pseudo-\wp-functions for elliptic curves. We show that the complex field with the corresponding analytic function is isomorphic to the pseudo-analytic version if and only the appropriate version of Schanuel's conjecture is true and the corresponding version of the strong exponential-algebraic closedness property holds. Moreover, we relativize the construction to build a model over a fairly arbitrary countable subfield and deduce that the complex exponential field is quasiminimal if it is exponentially-algebraically closed. This property asks only that the graph of exponentiation have non-trivial intersection with certain algebraic varieties but does not require genericity of these points. Furthermore Schanuel's conjecture is not required as a condition for quasiminimality.

Keywords

Cite

@article{arxiv.1512.04262,
  title  = {Pseudo-exponential maps, variants, and quasiminimality},
  author = {Martin Bays and Jonathan Kirby},
  journal= {arXiv preprint arXiv:1512.04262},
  year   = {2018}
}

Comments

v3: Substantial improvements to the organisation and presentation

R2 v1 2026-06-22T12:08:54.888Z