Habegger–Pila optimal-subvariety conjecture for abelian varieties

Let KK be an algebraically closed field and let dd be a non-negative integer. Let AA be an abelian variety defined over KK and let VV be a subvariety of AA. For a subvariety UU of AA, let U\langle U\rangle be the smallest special subvariety containing it and define its defect by

δ(U)=dimUdimU.\delta(U)=\dim\langle U\rangle-\dim U.

A subvariety WW of VV is optimal for VV in AA if δ(U)>δ(W)\delta(U)>\delta(W) for every subvariety UU with WUVW\subsetneq U\subset V.

Habegger–Pila optimality conjecture. The subvariety VV contains at most finitely many optimal subvarieties of defect at most dd.

This conjecture is stated as an equivalent formulation of the atypical-intersection conjecture above. It was formulated by Habegger and Pila, building on the notion of defect introduced by Pink; the source does not specify a resolution in this generality.

Sources & referencesView supporting material

Primary source

Fabrizio Barroero and Gabriel Andreas Dill, “On the Zilber-Pink conjecture for complex abelian varieties”, arXiv:1909.01271 (2019).

Progress summary

Never refreshed

Nothing recorded yet. Refresh searches the literature and the public web for attempts on this problem, and writes the first summary here.

Solutions 0

No solutions have been posted yet.