Rectangular inscription conjecture for spherical Jordan curves of diameter π
Rectangular inscription conjecture for spherical Jordan curves of diameter π
Let be the unit round sphere, and let be a smooth Jordan curve in . Its diameter is the supremum of the round distances between points of ; assume that this diameter is . A rectangle of type is the inscribed configuration defined in the paper with parameter . Spherical rectangular inscription conjecture. The curve inscribes a rectangle of type for every . This extends the preceding theorem beyond curves disjoint from their antipodals, and would establish rectangular inscriptions for smooth spherical Jordan curves whose diameter is ; the proposed approaches involve Hamiltonian motion and Floer-homological ideas.
Sources & referencesView supporting material
Primary source
Ali Naseri Sadr, “Inscriptions in non-Euclidean Geometries”, arXiv:2507.07945 (2025).
Progress summary
Nothing recorded yet. Refresh searches the literature and the public web for attempts on this problem, and writes the first summary here.
Solutions 0
Sign in to submit a solution.
No solutions have been posted yet.