{ "domain": "computer-science", "topics": [ "computational-geometry", "discrete-geometry" ], "type": "proof", "also": [ "construction" ], "source": { "key": "topp", "name": "The Open Problems Project", "url": "https://topp.openproblem.net/p28", "id": "28", "curator": "Erik D. Demaine, Joseph S. B. Mitchell and Joseph O'Rourke", "poser": "Herbert Edelsbrunner, Franco P. Preparata and Douglas B. West; Barry Joe", "status": "open", "as_of": "2026-10-20", "catalog": "0521c19bbd38" }, "review": true, "approval": "first-time" }