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Preprint Number 1849
1849. Vahagn Aslanyan, Sebastian Eterović and Jonathan Kirby Closure operators respecting the modular j-function E-mail: Submission date: 30 September 2020 Abstract: We give three equivalent characterisations of the natural closure operator on a field equipped with functions replicating the algebraic behaviour of the modular j-function and its derivatives, following similar work on exponential fields. As an application of these results, we give unconditional cases of a theorem of Eterović-Herrero on the Existential Closedness problem for the complex j-function which previously assumed the modular version of Schanuel's conjecture. Mathematics Subject Classification: 12H05, 11F03, 03C60 Keywords and phrases: |
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