The compact analytic semistable covering conjecture

Let kk be a valued field and let XX be a compact rig-smooth kk-analytic space. A finite covering is a finite union Xl=i=1nXiX_l=\bigcup_{i=1}^n X_i, and a semistable formal model of XiX_i is a semistable formal model over ll.

Compact covering conjecture. There exists a finite extension l/kl/k and a finite covering

Xl=i=1nXiX_l=\bigcup_{i=1}^n X_i

such that each XiX_i possesses a semistable formal model Xi\mathfrak{X}_i over ll.

This is a less local analytic formulation implied by the pointwise local uniformization conjecture. It expresses the existence of finitely many semistable formal charts after finite extension.

Sources & referencesView supporting material

Primary source

Michael Temkin, “Height reduction for local uniformization of varieties and non-archimedean spaces”, arXiv:2301.09160 (2024).

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