The p-adic splitting conjecture for definable sets

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Let KK be a pp-adically closed field and let AA be an infinite definable subset of KnK^n that is open in its closure. Let (Bk)k≤q(B_k)_{k\leq q} be a finite collection of closed definable subsets of A‾∖A\overline{A}\setminus A. The p-adic splitting conjecture. There exists a collection (Ak)k≤q(A_k)_{k\leq q} of non-empty definable subsets of AA, each clopen in AA, such that

∀k≤q,Ak‾=Ak∪Bk.\forall k\leq q,\quad \overline{A_k}=A_k\cup B_k.

If true, this would imply that the lattice of definable sets with atoms over KK satisfies the ASC-splitting property for every definable set. The source presents the assertion as a conjecture or question, and gives no evidence of resolution.

References

Primary source

Luck Darnière, “Model-completion of scaled lattices”, arXiv:math/0606792 (2006).

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