Kalai's affine-stress reconstruction conjecture up to affine type

Let d4d\geq 4, let 2id/22\leq i\leq d/2, and let PP be a simplicial dd-polytope. A missing face is a vertex set whose proper subsets are faces but which is not itself a face.

Kalai's affine-type reconstruction conjecture. If PP has no missing (d1)(d-1)-faces, then its graph and the space of affine 22-stresses determine PP up to affine equivalence. More generally, if PP has no missing faces of dimension at least di+1d-i+1, then the space of affine ii-stresses determines PP up to affine equivalence.

This strengthens reconstruction of combinatorial type by seeking the affine realization itself. The source gives no resolution.

Sources & referencesView supporting material

Primary source

Isabella Novik and Hailun Zheng, “Affine stresses: the partition of unity and Kalai's reconstruction conjectures”, arXiv:2208.06693 (2024).

Additional references

2 papers in this index state this conjecture (2021–2022). The statement above is taken from the most recent of them; the others are arXiv:2106.09284.

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