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

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Let d≥4d\geq 4, let 2≤i≤d/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 (d−1)(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 d−i+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.

References

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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