Stoker's conjecture on rigidity of hyperbolic strictly-convex polyhedra
Stoker's conjecture on rigidity of hyperbolic strictly-convex polyhedra
A hyperbolic strictly-convex polyhedron is a strictly-convex polyhedron in hyperbolic space, with dihedral angles measured along its edges. Stoker's conjecture. Every hyperbolic strictly-convex polyhedron is uniquely determined by its dihedral angles. The conjecture is attributed to J. J. Stoker, although he did not state it himself. Its spherical analogue has a flexible counterexample, while local rigidity in the hyperbolic case is known; the global statement is disproved.
Sources & referencesView supporting material
Primary source
Yunhi Cho and Seonhwa Kim, “Rigidity of nonconvex polyhedra with respect to edge lengths and dihedral angles”, arXiv:2307.14769 (2023).
Additional references
2 papers in this index state this conjecture (2022–2023). The statement above is taken from the most recent of them; the others are arXiv:2209.13439.
Progress summary
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