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Differential Existential Closedness for the $j$-function

Logic 2021-06-04 v2 Algebraic Geometry

Abstract

We prove the Existential Closedness conjecture for the differential equation of the jj-function and its derivatives. It states that in a differentially closed field certain equations involving the differential equation of the jj-function have solutions. Its consequences include a complete axiomatisation of jj-reducts of differentially closed fields, a dichotomy result for strongly minimal sets in those reducts, and a functional analogue of the Modular Zilber-Pink with Derivatives conjecture.

Keywords

Cite

@article{arxiv.2003.10996,
  title  = {Differential Existential Closedness for the $j$-function},
  author = {Vahagn Aslanyan and Sebastian Eterović and Jonathan Kirby},
  journal= {arXiv preprint arXiv:2003.10996},
  year   = {2021}
}

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