Quasi-polarized isogeny realization conjecture for K3 surfaces
Quasi-polarized isogeny realization conjecture for K3 surfaces
Let be a quasi-polarized K3 surface over . Let and be pointed lattices over and , respectively, with underlying lattices abstractly isomorphic to and . Equip with a Frobenius action such that is a K3 crystal. Quasi-polarized isogeny realization conjecture. For each pair of isometric embeddings
and
there exists a quasi-polarized K3 surface and an isogeny such that
and
This is the quasi-polarized refinement of the preceding realization conjecture, formulated using pointed lattices; the source gives no resolution.
Sources & referencesView supporting material
Primary source
Ziquan Yang, “Isogenies between K3 Surfaces over F_p”, arXiv:1810.08546 (2020).
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