Pseudo-exponential maps, variants, and quasiminimality
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--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