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Preprint Number 1221
1221. Jonathan Kirby Blurred Complex Exponentiation E-mail: Submission date: 12 May 2017 Abstract: It is shown that the complex field equipped with the “approximate exponential map”, defined up to ambiguity from a small group, is quasiminimal: every automorphism-invariant subset of the field is countable or co-countable. If the ambiguity is taken to be from a subfield analogous to a field of constants then the resulting “blurred exponential field” is isomorphic to the result of an equivalent blurring of Zilber's exponential field, and to a suitable reduct of a differentially closed field. These results are progress towards Zilber's conjecture that the complex exponential field itself is quasiminimal. A key ingredient in the proofs is to prove the analogue of the exponential-algebraic closedness property using the density of the group governing the ambiguity with respect to the complex topology. Mathematics Subject Classification: 03C65 (Primary), 03C48 (Secondary) Keywords and phrases: |

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