ScalingStacks

4.3. Non-Archimedean geometry [03EJ]

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4.3. Non-Archimedean geometry

The family HsaffH^{\operatorname{af{}f}}_{s} can be thought of as an affine algebraic hypersurface in (K∗)d(K^{*})^{d} defined over a complete algebraically closed field KK that contains ℂ⁡((s))\mathbb{C}((s)). Then, as the name suggests, the image of HsaffH_{s}^{\operatorname{af{}f}} under the valuation map v​a​l:(K∗)d→Rdval:(K^{*})^{d}\to R^{d} will be the non-Archimedean amoeba 𝒜∞λ\mathcal{A}^{\lambda}_{\infty} (cf. [Kap00]).

Interestingly, the potential functions for our Kähler forms ωs\omega_{s} will come from smoothing a convex piecewise linear function on ℝd\mathbb{R}^{d}. This gives another evidence that there may be a reformulation of mirror symmetry purely in non-Archimedean terms. There is a partial understanding of this approach [Kon00], but the entire program still remains wide open.

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