Wilkie's local definability conjecture for holomorphic functions

Let A\mathcal{A} be a family of complex holomorphic functions. Let zCnz\in\mathbb{C}^{n}, let UU be an open neighbourhood of zz, and let f:UCf:U\rightarrow\mathbb{C} be holomorphic and locally \emptyset-definable in RA\mathbb{R}_{\mathcal{A\upharpoonright}}. Let PG\mathcal{P}_{G} denote the family of polynomials with Gaussian rational coefficients. Wilkie's conjecture. There is an open box with Gaussian rational corners ΔU\Delta\subseteq U such that zΔz\in\Delta and fΔf\upharpoonright\Delta can be obtained from APG\mathcal{A}\cup\mathcal{P}_{G} by finitely many applications of composition, Schwarz reflection, taking partial derivatives, and extracting implicit functions.

The conjecture proposes a uniform complex-analytic description of locally definable holomorphic functions, extending Wilkie's generic-point result to every point. The paper's introduction states that this description is not complete around non-generic points, so the conjecture is refuted by the results of the paper.

Sources & referencesView supporting material

Primary source

Gareth Jones, Jonathan Kirby, Olivier Le Gal and Tamara Servi, “On local definability of holomorphic functions”, arXiv:1712.07064 (2017).

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